Coronary heart disease or coronary artery disease is a disorder occurs when the major artery is narrow. Coronary arteries become narrowed because of a build-up of fatty material within their wall like a plaque. Coronary arteries perform a major function by supply heart muscle with oxygenated blood but in coronary heart disease the blood flow becomes slow and sometime completely blocks the artery and result in heart attack.
Thus, the correct answer is coronary heart disease.
