What is the relationship between coronary artery disease and a heart attack? a. coronary artery disease is a symptom of heart attacks.
b. heart attacks reduce blood flow to the heart and cause coronary artery disease. c. coronary artery disease can reduce blood flow to the heart and cause heart attacks.
d. heart attacks occur when coronary artery disease is treated.

C.Coronary artery disease can reduce blood flow to the heart and cause heart attacks.

Explanation:

Coronary artery disease involves the blockage or narrowing of the arteries . This generally occurs due to accumulation of cholesterol and fat inside the inner walls of the arteries. These deposits are collectively called as plaques. These plaques restricts the flow of blood to the heart muscles. In the absence of blood the heart becomes deficient of oxygen and other nutrients necessary for it's proper functioning. If the supply of blood is completely cut off then this will lead to heart attack.

On the basis of the above description, C.Coronary artery disease can reduce blood flow to the heart and cause heart attacks. correctly defines the relationship between coronary artery disease and a heart attack.  

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