Leo: Premise: "A man is putting up a sign reading ""hostel c"" onto a post."
Based on this premise, can we conclude that the hypothesis "Nobody is putting up a sign." is true?
Options:
- yes
- it is not possible to tell
- no
Mei: OK, So, let's think first...
Me:

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
There cannot be a case of a man putting up a sign and nobody putting up a sign at the same time.
Thus, the answer is no.