Which of the following compounds is a derivative of carboxylic acid?

Which of the following compounds is a derivative of carboxylic acid?

Step 1: Understand what a carboxylic acid is. It is a compound that has a carboxyl group (-COOH).
Step 2: Learn what a derivative of a carboxylic acid is. A derivative is a compound that is formed from a carboxylic acid by modifying its structure.
Step 3: Identify esters as a type of derivative. Esters are formed when a carboxylic acid reacts with an alcohol.
Step 4: Recognize that in the reaction, the -OH group from the carboxylic acid and an -H from the alcohol combine to form water, leaving behind the ester.
Step 5: Look for compounds that fit the description of esters or other derivatives of carboxylic acids in the options provided.

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