Fact 1: Courtship is behavior that is intended to attract a mate. Fact 2: Some animals attract mates with scent. Given the two facts above, what can animal scent be used for?

pick from the following. i. h2o; ii. seeing light; iii. protect them; iv. Energy.; v. resistance; vi. Energy; vii. courtship; viii. dogs;
The answer is:
vii.