The correct answer is: A. Shahjahan
Shahjahan was the first Mughal ruler to be sworn in Patna. He was crowned on 14 January 1628, at the age of 39. The ceremony took place in the Diwan-i-Khas, a large hall in the Red Fort of Agra. Shahjahan’s father, Jahangir, had died on 28 October 1627, and Shahjahan had immediately set out from his capital at Agra to take possession of the throne. He was opposed by his younger brother, Khusrau Mirza, who had been proclaimed emperor by his supporters. However, Shahjahan’s forces were victorious, and Khusrau Mirza was captured and executed.
Shahjahan’s reign was a time of great prosperity and cultural achievement for the Mughal Empire. He commissioned the construction of many magnificent buildings, including the Taj Mahal, the Red Fort of Agra, and the Jama Masjid in Delhi. He also patronized the arts and sciences, and his court was a center of learning and culture.
Shahjahan’s reign came to an end in 1658, when he was overthrown by his son, Aurangzeb. Shahjahan was imprisoned in the Agra Fort, where he remained until his death in 1666.
Option B, Farrukhsiyar, was the fifth Mughal emperor. He was born in 1671 and ascended the throne in 1713. He was overthrown in 1719 and died in 1720.
Option C, Akbar, was the third Mughal emperor. He was born in 1542 and ascended the throne in 1556. He ruled until his death in 1605.
Option D, Aurangzeb, was the sixth Mughal emperor. He was born in 1618 and ascended the throne in 1658. He ruled until his death in 1707.