Institution: জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় (JKKNIU) Exam: ক ইউনিট || জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় || 2013
Topic: Narration or Speech, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The correct answer is C) "He asked me what he could do for me." This option accurately reflects the transformation of direct speech into indirect speech while maintaining grammatical integrity and clarity of meaning.

In the original sentence, "He said to me, 'What can I do for you?,'" the speaker is posing a direct question about what actions he can take to assist the listener. To convert this into indirect speech, we must consider several key factors:

1. **Pronoun Changes**: The pronoun "I" in the direct quotation refers to the speaker, while in indirect speech, it is shifted to "he" to indicate the original speaker's perspective.

2. **Question Format**: In direct speech, the question is stated in a way that requires a response. In indirect speech, the sentence becomes a statement rather than a question.

3. **Verb Tense Adjustment**: The verb "can" in the direct form is appropriately changed to "could" to reflect the past tense used in indirect speech reporting.

Thus, option C correctly encapsulates these changes without losing the original intent of the inquiry, making it the right choice.