Which of the Following Is Not a Valid Criticism of the Cross-Cultural

Which of the following is not a valid criticism of the cross-cultural extension of the PCL-R?

A) Psychopathy is an invalid construct outside of North America.
B) Mean scores appear to be significantly higher in North America than Europe.
C) Research has been largely based on samples in the United States and Canada.
D) Research using European samples has been largely confined to British inmates.