A Psychologist Says, "We Know That Genetics Is the Cause

A psychologist says, "We know that genetics is the cause of antisocial personality disorder because the concordance rates for monozygotic (MZ) twins is higher than that for dizygotic (DZ) twins." Such findings should be interpreted with caution because ____.

A) concordance rates for twins do not provide information about the genetic cause of disorders
B) DZ twins may be more alike genetically than MZ twins
C) other factors, such as environmental influences, might influence the findings
D) concordance rates are not considered to be reliable statistics