Which of the following statements about Akbar is/are correct?

A. Akbar was proclaimed king in 1565 when he was only 13 years of age.

B. Akbar was looked after by Bairam Khan.

C. He fought his first battle with Hemu at Panipat.

D. He had marriage relationships with many Rajput Royal families.

Select the code for the correct answer from the options given below: