Dr.Mason studies the effects of exposure to marijuana on fetal development.Dr.Mason's field is

A) obstetrics.
B) behavioral geneticism.
C) teratology.
D) clinical psychology.

Teratology

The study of abnormalities of physiological development, focusing on the causes and biological processes behind birth defects.

Exposure

The state of being subject to or presented with a particular environment, situation, or condition, which can lead to various psychological or physiological responses.

Marijuana

A psychoactive drug from the Cannabis plant, used for medical or recreational purposes.