Select the most appropriate option that can substitute the highlighted segment in the given sentence.
They didn’t catch you, are they?

Correct option is C

The correct tag question to match the negative statement "They didn’t catch you," is "did they?"
This usage complies with the rule of flipping the auxiliary verb and the subject for tag questions, especially after a negative statement. Grammatical rule used: In English, tag questions are formed by inverting the auxiliary verb and the subject pronoun.
If the statement is negative, the tag is positive, and vice versa. Example: You haven’t seen this movie, have you?