13) what percent of cocaine users begin by first using a “gateway drug”?\noa) 0\nob) 99.9\noc) 10\nod) 1

13) what percent of cocaine users begin by first using a “gateway drug”?\noa) 0\nob) 99.9\noc) 10\nod) 1
Answer
Brief Explanations:
Research indicates that a vast majority of cocaine users start with a gateway drug like marijuana or alcohol. Among the options, 99.9% is the closest to the commonly - cited high percentage.
Answer:
B. 99.9