A、He was on a field trip. B、He was vacationing in Florida. C、He was studying most of the time. D、He was vacationing at home. C推理

W: Hi, Peter.
M: Judy, I haven’t seen you in weeks. Where have you been.?
W: In Florida.
M: What? Vacationing while the rest of us have been studying on campus in the February cold.
W: Not exactly. I spent most of my time underwater.
M: I don’t understand.
W: I was on a special field trip. I went with my marine biology class.
M: So you went Scuba diving, what were you looking for, sunken treasure?
W: You might say so. The sea is full of treasures, ’all kinds of strange fascination things.
M: Oh, how wonderful it is.
W: Yeah, by concentrating, I was able to see the outlines of lots of different plants and animals under the sea. In fact, our professor even took photographs of small oceanic snails.
M: That sounds like a interesting trip. But I think if I’d been in Florida in February, I’d much rather spend my time just swimming and lying ,in the sun.