In a parliamentary system, the Cabinet is collectively responsible to the lower house of the legislature. The executive's survival is contingent upon maintaining the confidence of the majority of elected representatives. If the government loses this majority support, typically through a vote of no-confidence, the Cabinet must resign, reflecting the principle of parliamentary sovereignty and executive accountability.

In many parliamentary systems, including those modeled on the Westminster system, an individual appointed to the cabinet who is not a member of the legislature must secure a seat in parliament within a specified timeframe, typically six months, to maintain their ministerial position.

Cabinet government relies on continuous parliamentary debate and public scrutiny. By requiring ministers to defend policies and answer questions in the legislature, the system ensures that national issues are brought into the public sphere. This transparency and the necessity of public justification serve an educative function, informing citizens about governance and policy trade-offs.

While the Prime Minister leads the Cabinet and coordinates government departments, they do not chair parliamentary committees. Parliamentary committees are independent bodies composed of members from both houses, led by their own appointed chairpersons. This separation ensures that the legislature maintains its oversight function over the executive branch without the Prime Minister directly controlling the committee proceedings.

In a classic parliamentary system, the executive branch is drawn from the legislature. Ministers are required to be members of Parliament to ensure accountability and direct communication between the government and the legislative body. This fusion of powers is a defining characteristic of the Westminster model, ensuring that the executive remains responsible to the elected representatives of the people.

In a parliamentary cabinet system, the Cabinet is responsible for all the listed functions. It initiates major legislation, defends government policy during parliamentary debates, and is responsible for the preparation and presentation of the national budget. Therefore, none of the options provided represent a 'wrong' attribution.

While civil servants must support the government of the day, working too closely with political ministers can create a risk of politicization. If the line between professional administrative advice and political partisanship blurs, the impartiality of the bureaucracy may be questioned. Maintaining a professional distance ensures that civil servants provide objective, evidence-based advice regardless of the political pressures exerted by the executive branch.

In a parliamentary form of government, the Head of State (such as a President or Monarch) acts primarily as a ceremonial figurehead. Executive power is exercised by the Prime Minister and the Cabinet. Therefore, the removal of a Cabinet member is a political decision made by the Prime Minister, and the Head of State acts formally upon that advice.

In a parliamentary system, the bureaucracy operates under the direction of the political executive (Ministers). The bureaucracy exercises its own delegated powers granted by law, but it also implements the policies and directives of the Ministers. Therefore, the administrative machinery functions by combining its statutory authority with the executive authority delegated to it by the cabinet ministers it serves.

Lord Hewart, in his 1929 book 'The New Despotism', criticized the growing tendency of the British government to delegate legislative powers to administrative departments. He argued that this shift undermined the rule of law and parliamentary sovereignty, effectively creating an unaccountable bureaucratic class that exercised arbitrary power over citizens, which he termed a new form of despotism.