Choose the correct answer:

(i) Under the Magadha king the mahamatriyas functioned as secretaries to the ministers.

(ii) Accounts of Megasthanes titled Indica is a useful record about Mauryan polity and society.

(iii) Nanda’s attempt to build an imperial structure was cut short by Ashoka who founded the Mauryan kingdom.

(iv) According to tradition, towards the end of his life, Chandragupta become an ardent follower of Buddhism.