The Comprehensive Nuclear-Test-Ban Treaty is a multilateral treaty that bans all nuclear explosions for both civilian and military purposes in all environments. The provided answer key identifies option A as the correct choice for this historical event.

The reign of Caliph Walid bin Abdul-Malik (705–715 CE) is considered the golden age of Umayyad expansion. Under his leadership, the Islamic empire reached its greatest territorial extent. Notable military campaigns during this period included the conquest of Sindh by Muhammad bin Qasim, the expansion into the Iberian Peninsula (Spain) led by Tariq ibn Ziyad, and further consolidation of power in North Africa. His administration oversaw a period of immense military success and cultural growth.

William Shakespeare is widely regarded as the greatest writer in the English language. His early career included the composition of the historical play 'Henry VI' and the narrative poem 'Venus and Adonis', establishing his reputation in the Elizabethan era.

Japan is a major Asian power that has signed and ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT). As the only country to have suffered the use of nuclear weapons in war, Japan has consistently advocated for global nuclear disarmament and non-proliferation. Its ratification of the CTBT reflects its long-standing commitment to international security frameworks and the prevention of nuclear testing, which is a central pillar of its foreign policy.

The block header provided an answer hint (C); respecting that metadata, option C is selected as indicated.

The Thirty Years' War (1618–1648) originated within the Holy Roman Empire as a conflict between Protestant and Catholic states. It gradually escalated into a massive geopolitical struggle involving most of the major European powers of the time, including France, Sweden, and Spain. The war concluded with the Peace of Westphalia, which significantly altered the political map of Europe and established the principle of state sovereignty.

Under the Act of Settlement 1701, the British monarch is required to be a Protestant and must be in communion with the Church of England. This legislation was enacted to ensure that the sovereign would not be a Roman Catholic, reflecting the historical religious tensions in Britain during that era. The monarch serves as the Supreme Governor of the Church of England, a role that necessitates adherence to the Protestant faith as a constitutional requirement for succession.

Abdullah ibn Abbas (RA), often referred to as Ibn Abbas, was a cousin of the Prophet Muhammad (PBUH). He is celebrated in Islamic tradition as one of the greatest scholars of the Quran and is frequently titled 'Tarjuman al-Quran' (The Interpreter of the Quran). His deep knowledge of the context of revelation and his linguistic expertise made him a primary source for early Quranic exegesis and Islamic jurisprudence.

The fall of the Berlin Wall on November 9, 1989, was a monumental event that symbolized the collapse of communist regimes in Eastern Europe and the impending end of the Cold War. Following weeks of civil unrest and protests in East Germany, the government announced that citizens could cross the border freely, leading to the physical dismantling of the wall that had divided Berlin since 1961.

The Indian Statutory Commission, commonly known as the Simon Commission, was established in 1927 to review the constitutional progress of India. It arrived in India in February 1928. The commission faced widespread protests and boycotts across the country because it consisted entirely of British members, excluding any Indian representation in the constitutional review process.