Single/multi-select question: If "A male is sitting in a chair with a blue surgical mask on.", can we conclude "a man wears a mask"?

Options are:
[a]. yes;
[b]. it is not possible to tell;
[c]. no;

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
[a].