The visitor did his best to answer the host's questions politely because he did not want to appear insolent and ungrateful.

Based on the context, which definition most clearly fits the word insolent?

A.
a critical judgment of someone that is put in acceptable terms
B.
showing rudeness, especially when you should be respectful
C.
seeking revenge for a rude remark by another person
D.
a person who puts on a positive performance under pressure