The term ____refers to inflammation of a vein with formation of clots.

If you watch TV more than four hours a day, you’ll have ________. A: a 46 percent increased risk of dying cardiovascular disease B: at least a 46 percent higher risk of death from all causes C: at least an 80 percent higher risk for blood clots D: a 46 percent higher risk of dying heart disease

Where do the clots come from? Blood flow slow down. A sudden change in heart rhythm leads the upper chambers to contract abnormally. Platelets, clotting factors, and fibrin stick together. The clot can be carried up towards the arteries and blood vessels supplying the brain until getting to one it can't squeeze through. A: ①②③④ B: ②①③④ C: ②③①④ D: ①③④②