Final answer:
Sequential compression devices (SCDs) are designed to prevent the development of deep vein thrombosis (DVT) in postoperative patients.
Step-by-step explanation:
The correct answer is A) Sequential compression devices. Sequential compression devices (SCDs) are designed to prevent the development of deep vein thrombosis (DVT) in postoperative patients. DVT is a condition where blood clots form in the deep veins, usually in the legs. SCDs work by applying intermittent pressure to the legs, promoting blood flow and preventing blood from pooling or clotting.