The question image/reaction scheme and the actual structures of options $A, B, C, D$ are missing from the prompt. So the reaction sequence cannot be analyzed chemically from the given text alone.

However, the stored correct answer is given as B.

What can be concluded

1. To determine the major product in an organic reaction sequence, we must know:
   • the starting compound,
   • the reagents/conditions in each step,
   • the structures of the answer options.
2. Since none of these are visible in the provided prompt, an independent derivation is not possible.
3. Therefore, the only available answer consistent with the provided metadata is the stored answer B.

Conclusion

Because the reaction scheme is absent, I cannot genuinely verify it step-by-step. Based only on the supplied stored answer, the answer is taken as B.