<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 70-year-old male presents to his primary care provider complaining of decreased sexual function. He reports that over the past several years, he has noted a gradual decline in his ability to sustain an erection. He used to wake up with erections but no longer does. His past medical history is notable for diabetes, hyperlipidemia, and a prior myocardial infarction. He takes metformin, glyburide, aspirin, and atorvastatin. He drinks 2-3 drinks per week and has a 25 pack-year smoking history. He has been happily married for 40 years. He retired from his job as a construction worker 5 years ago and has been enjoying retirement with his wife. His physician recommends starting a medication that is also used in the treatment of pulmonary hypertension. Which of the following is a downstream effect of this medication?? A: Decrease nitrous oxide production, B: Increase cAMP production, C: Increase cGMP production, D: Increase cGMP degradation, E: Decrease cGMP degradation,  <response>: This is a question about the mechanism of action of medications used to treat erectile dysfunction. The patient is a 70 year old male with a history of diabetes, hyperlipidemia, myocardial infarction, and smoking. He is complaining of gradual decline in his ability to sustain an erection. His physician recommends a medication also used to treat pulmonary hypertension. The choices describe different effects on the nitric oxide NO - cyclic guanosine monophosphate cGMP pathway, which is important in penile erection. Choice A would decrease NO production, which is needed for erection. Choices B and C would increase cGMP, which promotes erection. Choice D would decrease cGMP, preventing erection. Therefore, the correct answer is likely choice E, which would decrease degradation of cGMP, allowing it to accumulate and promote erection.E: Decrease cGMP degradation 