The answer is: d. atherosclerosis, hypertension and high blood cholesterol
Atherosclerosis refers to a condition that caused by the build up of plaque within your artery wall and this would increase the speed of blood flow that lead to hypertension that caused heart attack and stroke. This condition could also be caused by high blood cholesterol that build up a blockage in your artery.
Answer: It happens when the autonomic nervous system (ANS) doesn't work as it should. The autonomic nervous system is the body's "autopilot" system, controlling things like heart rate, blood pressure, and breathing. (I'm not sure tho)
