Step 1: Understanding the Reaction.
The question involves identifying the correct structure based on the provided organic reaction. We need to focus on functional groups and their interactions during the reaction.
Step 2: Analyzing the Options.
- (A) \(\text{CHO}, \, \text{OH}, \, \text{OCH}_3 \) is the correct structure, which fits the expected results after the reaction.
- (B) \(\text{CHO}, \, \text{OH}, \, \text{C}_6\text{H}_5 \) is incorrect because it does not match the expected product.
- (C) \(\text{COOH}, \, \text{CH}_3, \, \text{C}_6\text{H}_5 \) is incorrect as it suggests different functional groups.
- (D) \(\text{COOH}, \, \text{OH}, \, \text{C}_6\text{H}_5 \) does not fit the expected result either.
Step 3: Conclusion.
The correct answer is (A) \(\text{CHO}, \, \text{OH}, \, \text{OCH}_3 \) as it fits the expected product.