The name 'Taj Mahal' originates from Persian, translating literally to 'Crown of Palaces / Crown's Place'.

'Kitab al-Asrar' (The Book of Secrets) is a celebrated medical and chemical treatise authored by the Persian polymath Abu Bakr Muhammad ibn Zakariya al-Razi.

The Strait of Hormuz connects the Persian Gulf with the Gulf of Oman and the Arabian Sea.

2006 — Twitter was launched in 2006, so 2006 is the correct answer.

Twitter was launched in 2006, which is the year the platform began operations.

Shah Wali Ullah translated the Holy Quran into Persian, producing a Persian-language rendition of the text.

Duplicate of Q108; retained for completeness.

The Strait of Hormuz, near Pakistani waters, is a key trade route (maritime studies).

In 2006, Dick Cheney was the incumbent Vice President of the United States, serving under President George W. Bush [1, p13]. Cheney held the office from January 20, 2001, to January 20, 2009. The provided PDF's answer key incorrectly marks (d) and its explanation is not relevant to the 2006 timeframe [1, p13].

In April 2006, the United States and South Korea formally requested observer status in SAARC. The SAARC Council of Ministers agreed in principle to grant this status to the US, South Korea, and the European Union in August 2006 [1, p13]. This marked an expansion of SAARC's engagement with global powers.