Final answer:
The correct deep water entry technique is the Deep Dive Entry, which minimizes impact and is appropriate for deep, obstacle-free water.
Step-by-step explanation:
In deep water free of obstacles, the correct entry to use is a Deep Dive Entry. This type of entry is designed to minimize the impact on the diver’s body and is typically performed by crossing the arms over the chest, bending at the waist, and entering the water feet first with the body extended to reduce the surface area upon impact. This method is most appropriate for deep water and allows the diver to safely penetrate the water’s surface with minimal splash, making it efficient for activities like competitive diving or entering the water from a significant height.