Your answer is going to be D. It narrows blood vessels. It is correct on E D G E N U I T Y.
A . It cools the injured tissue
Applying pressure to an injury helps reduce swelling by restricting the flow of blood an fluids .You can apply compression with static bandages , elastic bandages or cold and compression devices. it is commonly used in first aid as part of therapy known as rice . compression helps reduce swelling by restricting blood flow and can also help reduce pain
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