Correct Answer: Polite

Solution : The correct option is the first option.

Polite means showing good manners, courteousness, and respectful behaviour. It's the direct opposite of impertinence, indicating a respectful and courteous attitude towards others.

The meanings of the other options are as follows:

• Irrelevant means not related to or connected to the matter at hand.
• Insolent means showing a rude and disrespectful attitude.
• Personal refers to something related to an individual's private life or feelings.

Therefore, the correct answer is polite.