The question asks for the major product of the reaction, but the reaction scheme/image and the structures corresponding to options A, B, C, D are missing from the prompt.

Because of that:

1. I cannot identify the reactant(s) or reagent(s).
2. I cannot determine the reaction pathway.
3. I cannot evaluate which option is the major product.

So, with the information provided, the problem is not solvable from chemistry alone.

However, since a stored correct answer is given as C, the only possible comparison I can make is with that stored key.

Conclusion

• The reaction details are absent, so no independent derivation is possible.
• Therefore I cannot verify whether option C is truly correct from the given data.
• If you upload the reaction image or write the reactants/reagents and option structures, I can solve it step-by-step properly.