Final answer:
Benedict's paralysis from the waist down is likely due to an injury in his nervous system, specifically to his spinal cord, which has resulted in paraplegia. So, the correct answer is option 1.
Step-by-step explanation:
The injury that has resulted in Benedict being paralyzed from the waist down is most likely in his nervous system. The spinal cord is part of the nervous system and acts as a critical pathway for signals between the brain and the rest of the body. When the spinal cord is damaged, as it often is in serious accidents like car crashes, it can result in a disconnect between the brain and certain parts of the body.
This can cause loss of sensation and paralysis in the areas affected. In Benedict's case, the injury caused paralysis below the waist, which is known as paraplegia. This type of paralysis affects all or part of the trunk, legs, and pelvic organs but allows the use of arms and hands.