33 LR One Question 11
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Permalink Submitted by eabiddle on Mar 9 2015
Hi Dave! A and E seem like good answers here - is A wrong because it switches around "substance" and "caffeine"? Thank you :)

Permalink Submitted by majorgeneraldave on Mar 9 2015
Read carefully! (A) is tempting, but we haven't been given any evidence about how many people are addicted to caffeine; only how many people consume it!