Ben and Jarius have been best friends since early childhood. They have been through everything together, including a traumatic event that happened at their school. Now in their 20's, Ben has been diagnosed with an anxiety disorder, but Jarius doesn't show any symptoms of a psychological disorder. Which theory can explain how two freinds with such similar experience have different mental health outcomes?

a. cognitive-behavioral model

b. diathesis-stress model

c. sociocultural model

d. family systems model