The question image/reaction scheme and the structures of options $A, B, C, D$ are missing from the prompt. Because of that, the major product cannot be determined from the given text alone.

What is needed

To solve this properly, I need:

1. The reaction substrate,
2. The reagent/conditions, and
3. The structures of options $A, B, C, D$.

Why I cannot derive the answer

In haloalkanes/haloarenes, the major product depends critically on factors such as:

• whether the substrate is primary, secondary, tertiary, allylic, benzylic, vinylic, or aryl,
• whether the reagent favors $S_N1$, $S_N2$, $E1$, or $E2$,
• solvent effects,
• rearrangements,
• stereochemistry,
• presence of neighboring groups or resonance stabilization.

Without the actual reaction and option structures, any choice among $A, B, C,$ or $D$ would be a guess.

Comparison with stored answer

The stored correct answer is $C$, but since the reaction details are absent, I cannot independently verify that choice.

Please upload or type the full reaction scheme and the option structures, and I will solve it step-by-step.