A, B, C, D, E and F are sitting in a row. E and F are in the centre, A and B are at the ends, C is sitting on the left of A. Who is sitting on the right of B?

Correct option is A

Given the information:
- E and F are in the center.
- A and B are at the ends.
- C is sitting on the left of A.
Let's arrange the people:
1. Since A and B are at the ends, and C is to the left of A, we can place A on one end and C to its left. The possible row arrangement is:

C, A, _, _, _, B.
2. E and F are in the center. Since C and A are on one side, and B is on the other end, the middle spots must be occupied by E and F. The order can be:
C, A, E, F, _, B.
3. The only remaining person is D, who must be placed in the remaining spot:
C, A, E, F, D, B.
Now, according to the arrangement:
- D is sitting on the right of B.
Therefore, the answer is:
(a) D