Which of the Following Is True About Drug Use During

Which of the following is true about drug use during pregnancy?

A) Over-the-counter drugs are safe for use by pregnant women.
B) Taking prescription drugs with a controlled protein-rich diet greatly reduces the risk of harm to pregnant women.
C) All medications that have been tested and proven to be safe on animals are safe for use by pregnant women.
D) Central nervous system depressants can be harmful when taken during pregnancy.