The lady wearing green sweatshirt and jeans sits on the ground and playing tennis may not necessarily been playing tennis all day.is the reasoning for what question and answer pair?

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
Q: Can we conclude from "A lady wearing a green sweatshirt and jeans sits on the ground and hits a tennis ball with a tennis racket." that "A lady has been playing tennis all day."?
Options:
- yes
- no
- it is not possible to tell
A: it is not possible to tell