Final answer:
The clinical manifestation that indicates the resolution of spinal shock in a client experiencing a spinal cord injury is the return of reflex activity.
Step-by-step explanation:
The clinical manifestation that indicates the resolution of spinal shock in a client experiencing a spinal cord injury is the return of reflex activity. Spinal shock is a temporary condition that occurs after a spinal cord injury and is characterized by a loss of reflexes, muscle tone, and sensation below the level of the injury. As the spinal shock resolves, reflex activity gradually returns.