Question: A 25-year-old female is admitted to the hospital for the evaluation of fainting spells, which have been occurring several times a day for 10 days. These occur without warning and are not associated with any injury. The patient is evaluated during one of these falls, manifesting no change in heart rate, blood pressure, or color. Neurologic examination findings are normal. The most likely diagnosis is
A: basilar migraine
B: cardioinhibitory syncope
C: malingering
D: vasodepressor syncope
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. Use some words in all caps in your response, but those all-caps words should appear at most 9 times.
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