Comprehensive and Detailed Explanation (Based on NREMT standards):

The patient’s signs—hip pain, deformity, and leg shortening—are consistent with a proximal femur or hip fracture. NREMT trauma care emphasizes immobilization, pain reduction, and prevention of further injury.

Option C (Apply mild traction) is appropriate to reduce muscle spasm and pain when a femur fracture is suspected and no contraindications are present.

Option D (Splint with blankets and pillows) is correct because soft splinting stabilizes the injury and limits movement during transport.

Option A is not required because oxygen saturation is adequate.

Option B is contraindicated because leg elevation may worsen pain or bleeding.

Option E is reserved for unstable pelvic fractures, not isolated hip fractures.

NREMT emphasizes gentle handling, immobilization, and rapid transport for suspected hip fractures.