The correct answer is (a). Akbar Shah I was the father of Bahadur Shah Zafar, the last Mughal emperor.
Akbar Shah I was the third Mughal emperor, who ruled from 1556 to 1605. He was the son of Humayun and Hamida Banu Begum. Akbar was a great military leader and statesman, and he expanded the Mughal empire to its greatest extent. He was also a patron of the arts and sciences, and he built many beautiful buildings, including the Red Fort in Delhi.
Bahadur Shah Zafar was the last Mughal emperor, who ruled from 1837 to 1857. He was the son of Akbar Shah II and Lal Kunwar. Bahadur Shah Zafar was a poet and calligrapher, and he was also a patron of the arts. He was deposed after the Indian Rebellion of 1857, and he was exiled to Rangoon, where he died in 1862.
(b) Akbar Shah II was the sixth Mughal emperor, who ruled from 1760 to 1788. He was the son of Alamgir II and Mumtaz Mahal. Akbar Shah II was a weak and indecisive ruler, and he was unable to prevent the decline of the Mughal empire.
(c) Aurangzeb was the sixth Mughal emperor, who ruled from 1658 to 1707. He was the son of Shah Jahan and Mumtaz Mahal. Aurangzeb was a powerful and ruthless ruler, and he expanded the Mughal empire to its greatest extent. However, he was also a religious bigot, and he persecuted Hindus and other non-Muslims.
(d) Shah Jahan was the fifth Mughal emperor, who ruled from 1628 to 1658. He was the son of Jahangir and Mumtaz Mahal. Shah Jahan is best known for building the Taj Mahal, which he built as a tomb for his wife Mumtaz Mahal.