20 yo man with 6 hours hx of anxiety and confusion. Tem 100F, pulse 130/min, rr 15/min, bp 180/110mm Hg. PE: pupillary dilation and muscle weakness. Toxicity with which of the following substance? A. Cocaine. B. Opiates. C. Marijuana. D. Amphetamine. E. Benzodiazepines.