What are recognized as principles of "right" conduct?

________ are the most common injuries in the United States and often occur during sports or recreational activities

a. Broken arms b. Wrist sprains c. Ankle sprains d. Broken legs

What should be used to wipe down the surface of devices that cannot be immersed in water?

a. 70% ethyl alcohol b. Warm soapy water c. Strong detergent d. Bleach