One cannot paddle down a river if it is frozen over.
This justifies what answer for what question? Q & A:

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
Can we conclude from "Three people paddle down a river through tall grass in a canoe." that "The river is frozen over."?
Options:
- yes
- no
- it is not possible to tell
no