Correct option is D
Given:
- Rahul is in the 8th place from the left end of the row.
- Only 11 persons are sitting between Rahul and Samar.
- Samar is at some place towards the right of Rahul.
- Mohit is to the immediate left of Zeeshan, who is sitting at the extreme right end.
- Samar is in the 9th place from the extreme right end.
According to the above-given information, the possible arrangement is as follows -

So, from the above arrangement, the total number of persons seated = 7 + 1 + 11 + 1 + 6 + 1 + 1 = 28
Therefore, there are a total of 28 persons in the row.
So, the correct answer is (d).