The festivals had come to an end when I had entered the Mazar.

1. A Option A: The festivals had come to an end when I had entered the Mazar.
2. B Option B: The festivals had come to an end when I entered the Mazar.
3. C Option C: The festivals had come to an end when I am entering the Mazar.
4. D Option D: The festivals had come to an end when I had been entering the Mazar.

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