Which of the Following Is True

Multiple Choice

Which of the following is true?

A) The quality of a postnatal environment has little impact on the effect of a teratogen.
B) The genetic makeup of a fetus can influence the impact of a teratogen.
C) The effects of a teratogen do not appear to be related to the "dose" received.
D) An organ system is least vulnerable to the effects of a teratogen when it is developing rapidly.