a preference for rare insects an unusually high-pitched call skin that resembles tree leaves a body larger than other tree frogs
I gave my students this multiple choice question: A tree frog with which characteristic is more likely to survive than other tree frogs?

Only one answer is correct among these 4 choices:
- a preference for rare insects
- an unusually high-pitched call
- skin that resembles tree leaves
- a body larger than other tree frogs

Could you tell me which one is correct?

skin that resembles tree leaves