The belief that sexual orientation is a function of hormones and other physiological processes is associated with which theory? A humanistic B Social learning C biological D androgyny

The correct answer is C. biological theory.

Biology deals with the inner workings of our body - so, if something is the result of hormones and other physiological processes, then it will definitely be related to biology. The other options have more to do with the environment, rather than with the body itself.