The question image/reaction scheme and the option structures are missing. The prompt says:

"The major product formed in the following reaction, is"

but no reaction and no actual structures for options $A, B, C, D$ are provided.

So it is not possible to determine the major product uniquely from the available information.

Why the problem cannot be solved as given

To identify the major product in an organic reaction, we must know:

1. The starting substrate,
2. The reagent(s)/conditions,
3. The structures of the options.

Here, all of these are absent. Therefore no chemical analysis can be carried out.

Conclusion

Because the reaction scheme and answer choices are missing, I cannot derive the product and cannot verify whether option $D$ is correct on chemical grounds.

Please provide the reaction figure or describe:

• the reactant structure,
• the reagent/conditions,
• the option structures.

Then I can solve it step-by-step and compare properly with the stored answer.