According to the Ethical Guidelines for Conducting Psychological Research with Animals

Multiple Choice

According to the ethical guidelines for conducting psychological research with animals, exposing animals to harmful or painful procedures ​

A) is justified if the research design requires the harmful or painful procedures.
B) is justified for lower animals but not for primates. ​
C) cannot be justified unless the potential benefits of the research are substantial. ​
D) is never justified. ​