question: Q:A 43-year-old woman walks into the clinic for an annual check-up appointment with her family physician. When asked about any changes in her life, she states that she lost her job about 6 months ago. Since then, she has lived with her boyfriend who is also unemployed. She frequently uses laxatives and takes some over the counter medications to help her sleep. Her blood pressure is 129/87 mm Hg, respirations are 12/min, pulse is 58/min, and temperature is 36.7°C (98.1°F). Her physical exam is mostly benign. Her pupils appear mildly constricted and she appears drowsy and subdued. The physician suspects that the physical findings in this patient are caused by a substance she is likely abusing. Which of the following is the substance?? 
  {'A': 'Ketamine', 'B': 'Cocaine', 'C': 'Codeine', 'D': 'Alprazolam', 'E': 'Clonazepam'},