<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 72-year-old man presents to his primary care physician for a wellness visit. He says that he has been experiencing episodes of chest pain and lightheadedness. Approximately 1 week ago he fell to the ground after abruptly getting up from the bed. Prior to the fall, he felt lightheaded and his vision began to get blurry. According to his wife, he was unconscious for about 5 seconds and then spontaneously recovered fully. He experiences a pressure-like discomfort in his chest and lightheadedness with exertion. At times, he also experiences shortness of breath when climbing the stairs. Medical history is significant for hypertension and hypercholesterolemia. He does not smoke cigarettes or drink alcohol. Cardiac auscultation demonstrates a systolic ejection murmur at the right upper border and a normal S1 and soft S2. Which of the following is most likely found in this patient?? A: Bicuspid aortic valve, B: Decreased murmur intensity with squatting, C: High bounding pulses, D: Increased blood flow velocity through the aortic valve, E: Pulsus paradoxus,  <response>: Based on the description, this 72-year-old man is presenting with symptoms concerning for cardiovascular disease, including exertional chest pain, lightheadedness, syncope, and shortness of breath. Key findings on exam include a systolic ejection murmur at the right upper sternal border and a soft S2 heart sound. The murmur and history of syncope suggest aortic stenosis as the likely diagnosis. Aortic stenosis often presents later in life as the valve becomes increasingly calcified and narrowed. The narrowed valve obstructs left ventricular outflow, which can cause syncope with abrupt standing. On exam, the classic finding is a crescendo-decrescendo systolic ejection murmur heard best at the right upper sternal border, as described here.Choices A and C may be associated with aortic stenosis but do not directly explain the murmur and syncope. Choice B refers to dynamic murmur changes not described here. Choice D would be associated with the aortic stenosis but is not a physical exam finding. Choice E refers to exaggerated respiratory variation in pulse volume not found in this case.D: Increased blood flow velocity through the aortic valve 