The question image/reaction scheme and the actual option structures are missing. Only the text

"The product A formed in the following reaction is"

is provided, but no reaction, reagents, substrate, or option formulas are visible. Because of that, the product cannot be determined from the given information alone.

What is needed to solve it

To identify product $A$, I would need at least one of the following:

1. The full reaction scheme/substrate and reagents.
2. The structures corresponding to options A, B, C, and D.
3. A clear image of the original question.

Conclusion

With the currently provided data, no chemically valid derivation can be made. Therefore, I cannot independently verify whether option $C$ is correct.