Answer:
The sentence that has the most negative connotation is "Thomas is nervous"
Explanation:
The adjective that is used in each one of the options given goes from positive to negative, for example, cautious could be considered a positive personality trait, as well as humble, is normally considered a positive side of people, shy is not precisely good or bad and nervous could be considered bad if we take in consideration that people normally get nervous when they expect a negative result or have done something negative.
