By the End of High School,50 Percent of Teenagers Have

By the end of high school,50 percent of teenagers have experimented with illegal drugs.These numbers

A) are most likely inaccurate since adolescent drug users rarely admit to their behavior.
B) show a substantial increase since the mid-1990s,despite greater focus on the hazards of drug use.
C) show that drug use has changed little since the mid-1990s,despite increased focus on the hazards of drug use.
D) represent a substantial decline since the mid-1990s,probably resulting from increased focus on the hazards of drug use.