A flight crew member aware of being under a physical disability that might invalidate licence issue or renewal shall
Why this is the answer
Per CAR 404.06, a flight crew member who knows of a physical condition that could invalidate licence issue or renewal must not act as a crew member (self-grounding). The rule is to stop exercising the privileges, not merely to notify the Minister or arrange a backup.
Reference
CARs 404.06 – Prohibition Regarding Exercise of Privileges
Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.
A study aid — not a substitute for the official guide, the CARs, or your instructor.