Option 1 -> "impudent" means showing a lack of respect or being boldly rude, which is synonymous with impertinent.
Option 2 -> "affable" means friendly and easy to talk to, which is opposite in meaning.
Option 3 -> "elated" means extremely happy or joyful, which is unrelated to the context of disrespectful behavior.
Option 4 -> "naive" means lacking experience or being innocent, which doesn't capture the rudeness implied by impertinent.
Hence, Option 1: impudent -> Both "impertinent" and "impudent" describe disrespectful, rude behavior that shows a lack of proper manners, making the employee unpopular in the workplace -> correct