The correct option is D 13
Akbar was only 13 years old when he was crowned Emperor. Akbar was the third emperor of the Mughal Empire, after Babur and Humayun. He was the son of Nasiruddin Humayun and succeeded him as the emperor in the year 1556 , at the tender age of just 13. Akbar succeeded Humayun on February 14, 1556 in Kalanaur and was proclaimed 'Shahanshah'. Bairam khan ruled on behalf of the young Emperor till he came of age.