Choose the most appropriate option to change the narration (direct / indirect) of the given sentence.

Shyam said, “I was planning to quit my job out of sheer disinterest.”

a) Shyam told me that he was planning to quit his job out of sheer disinterest.
b) Shyam exclaimed that he is planning to quit his job out of sheer disinterest.
c) Shyam said that he had been planning to quit his job out of sheer disinterest.
d) Shyam informed me that he has been planning to quit his job out of sheer disinterest.