An expectant mother’s use of an illegal substance is an example of a
a. post-natal effect.
b. poor choice.
c. cultural effect.
d. teratogen.

The correct answer that would best complete the given statement above would be option D. TERATOGEN. An expectant mother’s use of an illegal substance is an example of a teratogen. When we say teratogen, these are substances that can harm or cause any problems or malformations to the embryos since this will hinder their normal development. Hope this answer helps.

Make a decision because you before you make a decision you have to know what it’s about and do reasearch