John Has Inherited a Personality Trait That Makes Him More

Multiple Choice

John has inherited a personality trait that makes him more likely to keep to himself than to socialise.As a result, he does not have many friends and spends a lot of time alone.If John were to develop depression, the model that would probably best explain this situation and the cause of his depression is

A) diathesis-stress.
B) biological.
C) reciprocal gene-environment.
D) interpersonal.