To prevent H20 from contaminating the washed area, as the water runs off the elbow rather than the hands that will be used in the surgery
The answer is C, To save lives, prevent injuries, and protect the health of America's workers.
Pros of using email messages is no one knows your number. By knowing your number then they have access to your area code and can eventually find out where you are located. A con of using email messages you cannot call someone and hear their voice.