The old man could not remember where he _____________ his money.

Correct option is A

The correct option to fill in the blank is (a) had deposited.

Explanation: The sentence refers to an event in the past where the old man forgot the location of his money. The use of "could not remember" indicates that the act of depositing the money occurred even earlier, requiring the past perfect tense ("had deposited").

Grammatical rule used:
The past perfect tense is used to denote an action that was completed before another action in the past. Here, "had deposited" is the earlier action, followed by "could not remember."

Meanings of other options:

• Is depositing: (वर्तमान में जमा कर रहा है) Present continuous tense, incorrect for this context.
• Will deposit: (जमा करेगा) Future tense, does not match the past context.
• Deposits: (जमा करता है) Simple present tense, incorrect for this narrative.

Correct Sentence: The old man could not remember where he had deposited his money.