Emilio Has Had a Bad Case of the Sniffles Lately

Emilio has had a bad case of the sniffles lately, so he goes to his grocery store to buy some over-the-counter cold pills. He is surprised to find out that he has to go to the pharmacy counter and show identification to buy them. The pharmacist informs him that this is a new policy because some creative "chemists" have figured out a way to turn cold pills into

A) ketamine (or Special K) .
B) MDMA.
C) GHB.
D) methamphetamine.