Which statement best reflects the main advantage of conducting psychological research with animals

A)  With research on animals, there are no ethical issues to be concerned with. 
B)  In their biological makeup, animals are fundamentally similar to humans. 
C)  A researcher can exert more control over an animal than over a human subject. 
D)  It is much cheaper to conduct research on animals than on humans.

Psychological Research

The scientific study of the mind, behaviors, and mental processes, employing empirical methods to understand, predict, and control psychological phenomena.

Ethical Issues

Moral challenges that arise in the context of professional practices, often involving the right course of action in complex situations.

Biological Makeup

The genetic and physiological characteristics that define an individual's biology, including genetic code, organ functioning, and hormonal levels.