As Part of a Public Health Initiative, a Nurse Is

As part of a public health initiative, a nurse is teaching a group of older adults about ways to promote and maintain their health. Recognizing that the common cold is a frequent source of ailment, the nurse is addressing this health problem. Which of the following teaching points about the common cold is most accurate?

A) "You shouldn't be taking antibiotics for a cold until your doctor has confirmed exactly which bug is causing your cold."
B) "It's important to both cover your mouth when you cough or sneeze and encourage others to do so, since most colds are spread by inhaling the germs."
C) "Scientists don't yet know exactly what virus causes the cold, and there is not likely to be a vaccine until this is known."
D) "Use caution when choosing over-the-counter drugs for your cold; most people do best with rest and antifever medications."