It is the major cause of acute and chronic hepatitis, cirrhosis and liver cancer. There is an effective vaccine to prevent infection:

Which of the following is NOT commonly stocked in an emergency medical box?

a. Ativan b. Activated charcoal c. Normal saline d. Lidocaine

Objective or external factors that can be seen or felt by the physician or measured by an instrument are called ____. 

A. symptoms B. outcomes C. signs D. behavior E. feelings