Final answer:
Lung squeeze, or pulmonary barotrauma, occurs at depths below 60 feet when a person holds their breath and ascends too quickly.
Step-by-step explanation:
Lung squeeze, also known as pulmonary barotrauma, usually occurs at depths below 60 feet when a person holds their breath and ascends too quickly. At this depth, the pressure exerted by the water can cause the lungs to collapse or suffer from other severe injuries. Therefore, the correct answer is B) 60 feet.