This cardiovascular event may occur when a blood vessel in the brain bursts or becomes blocked by something, such as a traveling blood clot.
A. stroke
B. heart attack
C. hypertension
D. atherosclerosis
A, stroke. I know this would happen only from watching too much House (lol) but I know for fact that a heart attack would be caused by a blood clot if it gets stuck in an actual heart vessel.
