In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

The old man said, "Thanks I shall never forget this kindness, Ankit."

A

The old man applauded Ankit for his kindness and he shall never forget Ankit.

B

The old man thanked Ankit and assured him that he would never forget his kindness.

C

Ankit was being thanked by the old man for his kindness towards an old man.

D

The old man said thank you to Ankit for his kindness.