Hemiplegia is defined as:

Hemiplegia is defined as paralysis on one side of the body, typically resulting from a neurological condition such as a stroke. This condition affects the ability to move or control muscles on that side, which can impact both the arm and the leg, depending on the severity and location of the neurological damage. The term ‘hemi’ means half, indicating that the paralysis affects half of the body, distinguishing it from other types of paralysis that might affect specific limbs or body regions; for instance, paralysis of both legs is known as paraplegia, and paralysis of one arm alone is referred to as monoplegia. Numbness in both hands relates to sensory issues and does not encompass the motor impairment characterized by hemiplegia. Therefore, the correct definition exemplified in this choice accurately reflects the condition's clinical implications.