Convert the given statement into indirect speech. Krishna said to me, "Help me in keeping the toys clean."

The given statement, that is, Krishna said to me, "Help me in keeping the toys clean." is in direct speech since it is the exact words of the speaker. We need to convert it into indirect speech as reported by someone else. Option A is wrong as it is reported in a question format with the reporting verb 'asked'. Option B is wrong as quotation marks are not used while converting into an indirect speech format. Since the given question is a statement, the reporting verb has to be 'requested'. Option D does not use this. Hence, option C is the right answer.