Ryan, age 8, was cut from the school soccer team. After the initial disappointment, he became a boy scout, which he really enjoyed. Now as an adult, when he did not get into graduate school, rather than become depressed, Ryan found a job in his field that he enjoys, and plans to try again later. This is an example of
a. a necessary and sufficient cause.
b. the diathesis-stress theory.
c. the interactive model of the diathesis-stress theory.
d. the steeling or inoculation effect of some stressful experiences.