Which of the following is an example of a diathesis-stress model?
a. Ozzie treats his manic episodes by using medication to induce depression.
b. Ozzie had an ideal childhood, but he develops depression as an adult.
c. Ozzie has a genetic predisposition towards depression, but he did not experience depression until his mother and father died.
d. Ozzie treats his depression by exposing himself to a series of stressors so he can learn coping skills.