Task: Question Answering
Input (English): Question: Two brother X and Y appeared for an exam. The probability of selection of X is 1/3 and that of B is 2/7. Find the probability that both of them are selected.

 Option A: 2/69

 Option B: 2/21

 Option C: 2/23

 Option D: 2/29

 Option E: 2/10
Output (English): Option B