In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Let me give you an example: Question: A 13-year-old girl is operated on due to Hirschsprung illness at 3 months of age. Which of the following tumors is more likely to be present?
Options: <1> Abdominal neuroblastoma <2> Wilms tumor <3> Mesoblastic nephroma <4> Familial thyroid medullary carcinoma.
The answer to this example can be: 2
Here is why: The answer to the given question should be a tumor, therefore Wilms tumor is the correct answer for the given question.

OK. solve this:
Question: A 58-year-old woman enters the Short Stay Medical Unit due to a clinical picture that began with an episode of syncope and then presented feeling of dizziness and dyspnea. On physical examination, she is sweaty, afebrile at 126 beats per minute and at 30 breaths per minute, with a blood pressure of 88/46 and an oxygen saturation of 85% while breathing room air. Cardiac auscultation shows tachycardia without murmurs or gallop and pulmonary auscultation is clean. Which, among the following, seems the most likely diagnosis?
Options: <1> Pulmonary embolism. <2> Acute cerebrovascular accident of posterior territory. <3> Acute coronary syndrome <4> Hypovolemic shock. <5> Acute pulmonary edema secondary to atrial flutter.
Answer:
1