Puncture leaks in the lower tubes, or bottom of an inflatable life raft should first be stopped by using __________.

Correct Answer: Option A — sealing clamps

Sealing clamps are the primary emergency tool for stopping major punctures in inflatable life raft tubes. They provide immediate mechanical closure of the leak, allowing the raft to maintain buoyancy until a more permanent repair, such as a vulcanized patch, can be applied using the onboard kit.