Which Statement About Individuals' Level of Moral Reasoning Is True

Which statement about individuals' level of moral reasoning is true?

A) Individuals with a higher degree of education tend to reason at a higher level than do others.
B) Individuals whose moral reasoning is at higher levels are more likely to help others.
C) Individuals whose moral reasoning is at higher levels are less likely to engage in delinquent activities.
D) All of these statements are true.