The question refers to “the following reaction”, but the actual reaction scheme/structures and option structures are missing in the prompt. Also, options $A, B, C, D$ are blank.

So, the product cannot be determined from the given information.

Step-by-step assessment

1. To identify the major product in an organic reaction, we need:

   • the starting substrate,
   • the reagents/conditions, and
   • the structures of the options.

2. In the current prompt, none of these structural details are visible.

3. Therefore, it is not possible to derive the correct product independently.

Comparison with stored answer

The stored correct answer is given as C, but since the reaction and options are absent, I cannot verify whether $C$ is actually correct.

Conclusion

Please provide the reaction image or the reactant/reagent details along with option structures so I can solve it properly step-by-step.