Among the Five Rules for Constructing a Cross-Cultural Generalization About

Among the five rules for constructing a cross-cultural generalization about crime are the following, EXCEPT:

A) Event x is not the cause of rising crime rates if it occurs when rising crime rates do not occur.
B) Event x is not the cause of rising crime rates if it does not occur when rising crime rates do occur.
C) X is not necessarily the cause of the rising crime rates if one or more variables are present at the same time.
D) The generalization "x causes crime" stands on its own merit and requires no theoretical explanation.