Studies Examining the Relationship Between Stressful Life Experiences and Psychological

Studies examining the relationship between stressful life experiences and psychological disturbance in childhood have found that

A) there is a strong relationship between stressful experiences and psychological disturbance.
B) it takes a great number of protective factors to prevent maladjustment.
C) often just one or a few protective factors account for a child being "stress-resilient."
D) traits and experiences that protect children against psychological disturbance are unknown.