Answer the following question given this paragraph: 

Other than insects, virtually no other animals can inhabit the airy world. Flying is a sure-fire way to escape from all but the quickest nonflying predators. Flying also gives birds a good view for finding food and mates.


Q: What technique is used by insects and birds to find food, mates, and safety from predators?

 Choices:

- playing

- sleeping

- mating

- flying

A:
flying
