1-14.In the Diathesis-Stress Model,a Diathesis Is

1-14.In the diathesis-stress model,a diathesis is

A) a distal necessary or contributory cause of a mental disorder.
B) a sufficient cause that is distal from the onset of symptoms.
C) a necessary or contributory cause that is proximal to the onset of symptoms.
D) a biological vulnerability that virtually guarantees the development of the disorder.