The Nurse Is About to Administer a Category C Drug

The nurse is about to administer a Category C drug to a pregnant client. Which describes this FDA category of risk potential during pregnancy?

A) A risk has not been documented during pregnancy.
B) Animal studies show no risk, but there is inadequate documentation in humans.
C) Animal studies show adverse effects but there are no adequate studies in humans.
D) There is evidence of human fetal risk, but the benefits may outweigh risks.