In the 1990s, Deaths from Cocaine Overdosed Decreased Dramatically

Multiple Choice

In the 1990s, deaths from cocaine overdosed decreased dramatically. Clearly, fewer people were using cocaine in the 1990s than in previous decades.
Which of the following, if true, would account for the statistic above without supporting the conclusion?

A) Many cocaine users are afraid to seek emergency help, making them more likely to die from drug overdoses than are users of prescription drugs.
B) While deaths from cocaine overdoses decreased, deaths from complications related to heroin usage increased.
C) In 1992, many insurance companies started covering drug treatment counseling and rehabilitation, allowing those with serious addictions to get help for their addictions.
D) In 1992, a more potent version of cocaine became popular, increasing the risk of an overdose.
E) Most cocaine users end up in hospitals due to poor nutrition and other health problems, not overdoses.