Think about the price method for treating an injured athlete. according to price, which three items in a first aid kit would be most for treating a knee injury?

The three items would be Brace, Ice, and Elastic Bandage. 

PRICE stands for Protection, Rest, Ice, Compression, and Elevation. It is a principle used for addressing acute injuries that occur during sporting activities. The brace is a part of the protection principle where once the onset of the injury, the knee should be well protected to prevent further damage. Ice is for the prevention of further swelling of the injured area while an elastic bandage is for the principle of compression. These 3 combinations of materials will ensure the successful transfer of an individual to medical care upon the onset of an injury.