Question

what is the meaning of give someone the third degree?
the librarian gave me the third degree because several library books went missing while i was in the room.
to miss the big picture by focusing on the detailsto take someones temperatureto treat someone like a suspect by asking many questions

Explanation:

The phrase "give someone the third degree" is an idiomatic expression. In the given context, the librarian is interrogating the speaker (as books went missing when the speaker was in the room). "To treat someone like a suspect by asking many questions" aligns with the idea of intense questioning (like a police - style interrogation which is the origin of this idiom, where the 'third degree' was a form of police interrogation). "To miss the big picture by focusing on the details" is about a different kind of cognitive error (not related to questioning). "To take someone's temperature" is a literal or metaphorical (in a medical or emotional sense, like gauging feelings) action that doesn't match the context of intense questioning.

Answer:

to treat someone like a suspect by asking many questions