Final answer:
Paraplegia is the correct answer to the question, describing the loss of function of the lower body and legs usually due to spinal cord injuries.
Step-by-step explanation:
Paraplegia is the loss of function of the lower body and legs. Paralysis can result from spinal cord injuries, which obstruct the communication between the brain and body. Common causes of such injuries include car crashes, sports injuries, and diving accidents. Paraplegia specifically refers to paralysis affecting all or part of the trunk, legs, and pelvic organs, allowing for the use of arms and hands. In contrast, quadriplegia impacts the arms, hands, trunk, legs, and pelvic organs, while hemiplegia involves paralysis of one side of the body, often due to a hemisection of the spinal cord.