A transient ischemic attack (TIA) occurs when:
A. the body's normal processes destroy a cerebral thrombus.
B. neurological abnormalities resolve within 36 to 48 hours.
C. hemostasis causes activation of blood-clotting mechanisms.
D. a cerebral artery becomes partially occluded by a blood clot.
Answer: A. the body's normal processes destroy a cerebral thrombus.
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