Select the correct indirect form of the given sentence.
Raju said to his friend, "I lost my book yesterday."

A

Raju told his friend that he had lost his book the previous day.

B

Raju told his friend that his book may have been lost the previous day.

C

Raju said to his friend that he lost his book the previous day.

D

Raju said to his friend that his book had been lost the previous day.