When using the rainwater collection tubes on a life raft, the FIRST collection should be __________.

Correct Answer: Option B — poured overboard because of salt washed off the canopy

Rainwater collected from a life raft canopy initially contains salt residue and debris. The first collection must be discarded to ensure the subsequent water supply is potable. Consuming salt-contaminated water accelerates dehydration, which is a severe risk to survival in a life raft environment.