With Regard to Medications,herbs,shots,and Other Substances Normally Encountered by Pregnant

With regard to medications,herbs,shots,and other substances normally encountered by pregnant women,the maternity nurse should be aware that:

A) Both prescription and over-the-counter (OTC) drugs that otherwise are harmless can be made hazardous by metabolic deficiencies of the fetus.
B) The greatest danger of drug-caused developmental deficits in the fetus is seen in the final trimester.
C) Killed-virus vaccines (e.g., tetanus) should not be given during pregnancy, but live-virus vaccines (e.g., measles) are permissible.
D) No convincing evidence exists that secondhand smoke is potentially dangerous to the fetus.