Which Is NOT an Inference Derived from Wendy Schwartz's Analysis

Which is NOT an inference derived from Wendy Schwartz's analysis of information from the Educational Resource Information Center?

A) In the past twenty years, the earnings level of dropouts doubled while it nearly tripled for college graduates.
B) Dropouts comprise nearly half of the nation's prison population.
C) Peer status in adolescence is negatively associated with school achievement.
D) Recent dropouts will earn $200,000 less than high school graduates over the course of their lives.