Correct Option: A

The Ain-i-Akbari or the "Constitution of Akbar", is a 16th century, detailed document recording the administration of emperor Akbar's empire, written by his vizier, Abu'l-Fazl ibn Mubarak. It makes the Volume III and the final part of the much larger document, the Akbarnama, the Book of Akbar, also by Abul Fazl, and it itself is in three volumes.