In order to retrieve an inflatable life raft and place it on deck, you should heave on the __________.

Correct Answer: Option D — towing bridle

The towing bridle is the structural component designed to withstand the forces of towing or retrieving an inflatable life raft. Heaving on the lifelines or other attachments can cause damage to the raft's fabric or inflation system, potentially compromising its integrity and the safety of the occupants.