Which Statement About the Timing of Effects of Teratogens Is

Multiple Choice

Which statement about the timing of effects of teratogens is FALSE?

A) The sensitive period for the development of the external genitalia occurs prior to the sensitive period for the heart.
B) The sensitive periods for the central nervous system and the heart are the same.
C) Exposure to teratogens during the fetal period is likely to lead to major structural defects.
D) There is no sensitive period in relation to the timing of effects of teratogens.