The question appears to be incomplete.

It asks:

Identify B and C and how are A and C related?

but the necessary reaction scheme / structures of A, B, and C and the actual option statements are missing. The options shown are only placeholders:

• A:
• B:
• C:
• D:

So there is no chemical information available from which B and C can be identified.

Step-by-step assessment

1. To solve such an organic chemistry question, we would need at least one of the following:

   • the structure of compound $A$,
   • the reaction sequence leading to $B$ and $C$,
   • the structures given in the answer options.

2. None of that information is present in the prompt.

3. Therefore, the problem cannot be solved uniquely from the provided data.

Conclusion

Because the reaction/structure information is missing, B and C cannot be identified, and the relation between $A$ and $C$ also cannot be determined.

Hence, I cannot legitimately verify whether option A is correct.

If you provide the full reaction scheme or the missing options/structures, I can solve it completely.