The question statement says, “The major product obtained in the following reaction is:” but the crucial reaction scheme/image and the option structures A, B, C, D are missing.

So, the product cannot be determined from the text provided alone.

Step 1: What is missing?

To solve an organic chemistry product question, we need:

1. The starting compound
2. The reagents/conditions
3. The structures of options A, B, C, D

Here, all of these are absent.

Step 2: Can the answer be inferred from the stored key?

The stored correct answer is given as D, but without the reaction and option structures, this cannot be independently verified chemically.

Step 3: Conclusion

Since the reaction scheme and options are missing, the problem is incomplete, and no valid chemical derivation can be made.

Therefore, I cannot confirm that option D is correct from the supplied information.

Please provide the reaction image or the full reaction and option structures so I can solve it properly step-by-step.