Final answer:
Dr. Smith placed a restrictive splint on David's arm to limit mobility but not totally prohibit it. Restrictive splints provide support and limit movement while allowing some range of motion.
Step-by-step explanation:
Dr. Smith placed a(n) restrictive splint on David’s arm to limit mobility, but not totally prohibit it. Restrictive splints are used to provide support and limit movement while still allowing some range of motion. They are often used for injuries that require immobilization but also require some degree of movement for the healing process.