The correct answer is (C) To save (from wreckage or failure); to rescue from ruin, fire, shipwreck, danger, etc.; to save a ship or its cargo; to make salvage of.

Salvage comes from Latin salvare (o save).

Examples of use:

• They were able to salvage only a few items from the ruins of their cottage.
• It took commitment and intensive counseling to salvage their marriage.