Correlational Research Is Used So Often as a Method of Studying

Correlational research is used so often as a method of studying human sexuality because _______.

A) researchers typically cannot control people's sexual behaviors as would be necessary in an experiment
B) it almost always allows researchers to determine if one variable causes another variable
C) it provides researchers with an easy way to test new theories of human sexuality
D) it allows researchers to take a large number of unrelated variables and figure out how to connect them to each other