When taking a health history, the nurse should include specific questions about the use of OTC drugs and alternative therapies. This is an important aspect of the health history because.

a. Many insurance policies cover these drugs. 

b. Patients should be reprimanded about the use of these products. 

c. Patients often do not consider them to be drugs and do not report their use. 

d. Patients should never use these products when taking prescription drugs. 

e. These products can mask or alter presenting signs and symptoms. 

f. Many of these products interact with traditional prescription drugs.