psychology question

Which of the following examples would be an illustration of the differential susceptibility model? A)Children who live in high stress, dangerous environments are more likely to develop anxiety and depression than children who live in low stress, safe environments. B)People who possess one variety of a gene related to the neurotransmitter serotonin are more prone to depression than people who possess a different variety of the same gene, but only after experiencing significant life stresses. C)Children who have older fathers when they are born are more likely to develop schizophrenia than children with younger fathers. D)Children whose parents suffer from psychological disorders are more likely to be maladjusted than children whose parents do not have psychological disorders.