The question refers to "the above reaction", but the actual reaction scheme/image and the option structures for A, B, C, D are not present in the prompt. Because of that, the identities of $(A)$, $X$, and $Y$ cannot be determined from the given text alone.

What is missing

To solve this type of organic chemistry MCQ, I would need:

1. The reaction sequence / reaction diagram
2. The structures or names of the options A, B, C, D

Without those, any answer would be a guess.

Comparison with stored answer

The stored correct answer is B, but since the reaction and options are missing, I cannot independently verify whether B is correct.

Conclusion

Please provide the reaction scheme and the option structures so I can solve it step-by-step and verify the answer properly.