A Recent Twin Study (Waller & Ross, 1997) of Dissociative

A recent twin study (Waller & Ross, 1997) of dissociative disorders suggests that:

A) genetic variables most significantly account for the disorder; however, most environmental influences also play a significant role
B) environmental variables account for the disorder, with little or no genetic influence
C) genetic variables account for the disorder, with little or no environmental influence
D) environmental influences most significantly account for the disorder; however, genetic variables also play a significant role