Which among the following is a non-freezing cold injury?

Cold injury: An injury caused by exposure to extreme cold that can lead to loss of body pas and even to death. Freezing: Examples of cold injury are chilblain, frostbite, and frostbite. Non-freezing cold injury (NFCI) is an injury to the hands or feet resulting from exposure to wet conditions and temperatures just above freezing, typically found in soldiers. EX: Trench (immersion) foot Ref : Park 23rd edition Pgno : 748