He said to me, I have often told you not to play with fire.

Answer: Option B

Solution:

Original Sentence (Direct Speech):
He said to me, "I have often told you not to play with fire."

Step-by-step Conversion:
1. This is a statement, so “said to me” changes to “told me” in indirect speech.
2. The verb “have told” is in the present perfect tense. In indirect speech, present perfect changes to past perfect → “had told”.
3. “I” becomes “he”, and “you” becomes “me”.
4. The phrase “not to play with fire” remains unchanged because it is already in the correct form for indirect speech.

Correct Sentence:
He told me that he had often told me not to play with fire.

Correct Answer: Option B

Why other options are incorrect:
Option A: “has often been telling” — ❌ incorrect tense. “Have told” should become “had told,” not continuous tense.
Option C: “reminded me that he often said…” — ❌ wrong reporting verb and tense. “Said” does not convey the repeated advice correctly.
Option D: “that he often told me…” — ❌ wrong tense. Present perfect should change to past perfect, not simple past.

Final Answer: Option B – He told me that he had often told me not to play with fire.