The question as provided is incomplete.

1. The stem says: $\text{Residue (A) + HCl (dil) } \rightarrow \text{ Compound (B)}$ and asks for the structures of residue $(A)$ and compound $(B)$.

2. However, the crucial information is missing:

   • the reaction context from which the “residue” is obtained,
   • the structural figures for options A, B, C, D,
   • and any preceding compound or experimental setup.

3. In questions of this type, “residue + dilute HCl” often refers to hydrolysis of a sodium salt or alkaline residue to regenerate a carboxylic acid, phenol, oxime derivative, etc. But without the missing structures/options, the identity of $(A)$ and $(B)$ cannot be derived uniquely.

4. Since the options are blank, I cannot systematically evaluate option A, B, C, D.

5. Therefore, from the given data alone, the problem is underdetermined. Although the stored correct answer is marked as C, I cannot independently verify it without the missing reaction scheme or structures.

6. If you share the image/options, I can solve it fully and verify whether option C is indeed correct.