Many Studies on Psychological Maltreatment, Neglect, and Exposure to Interparental

Many studies on psychological maltreatment, neglect, and exposure to interparental violence:

A) Have finally been able to make a number of cross-cultural comparisons.
B) Fail to consider the parameters of the maltreatment such as its frequency.
C) Only have access to retrospective data among college students.
D) Now use the definitions promulgated by the United Nations Conventions.