Which sentence below uses the word palpable correctly?

Responses
1) She is a palpable student who earns straight As.
2) His treatment of ordinary working-class people was palpable.
3) During the argument, the tension in the room was palpable.

3) During the argument, the tension in the room was palpable.

Sentence 3) During the argument, the tension in the room was palpable.