Even if they kept the questions the same they could have made the answer choices more difficult. I mean:
" 'O.C.' refers to what powerful painkiller?
---DMT
---Amphetamine
---Oxycodone (OxyContin)"
That's an obvious answer even if you've never heard of these drugs. "Maybe OC stands for DMT. They just don't call it DMT because OC is less letters." I just can't see how anyone could get that wrong or what kind of logic was put into creating the answer options.