The University of Michigan Researchers Have Found That __________

Multiple Choice

The University of Michigan researchers have found that __________.

A) rates of illicit drug use in schools that have drug-testing programs were significantly lower than in schools that do not have such programs
B) rates of illicit drug use in schools that have drug-testing programs were significantly higher than schools that do not have such programs
C) schools that have drug-testing programs have equivalent illicit drug use rates to those of schools that do not have such programs
D) while illicit drug use is significantly lower in schools which have drug-testing programs,licit drug use is significantly higher than in schools that do not have such programs