I'll give you a question, please answer with step-by-step reasoning process. What do most birds have the ability to do?
Options:
- beak
- ability to fly
- ability to fly
- wings
- learn to fly

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Birds have wings which can help them fly. All the other animals do not have wings and the ability to fly. most birds can fly.
The answer: ability to fly.