Here's a question: When they got out of the car in the mountains he felt like he was breathing fresh air for the first time, he began to do what to enjoy it more?

Here are possible answers to this question:
- living
- feeling good
- hyperventilate
- look around
- breathe deeply

I believe the correct choice is "breathe deeply", here's why:


car in the mountains he felt like he was breathing fresh to get breathe deeply