If you are playing basketball for a long period of time, what is likely to cover your shirt?
Options:
- make baskets
- dribbling
- sweat
- fall down
- work together
Let's think carefully first. Step-by-step reasoning process:

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
Sweat comes from gland of body when one works a lot like playing for long time. Sweat is a fluid suabstance that can cover shirt. So the final answer is sweat.