The movement of oxygenated blood from the ascending aorta to the heart muscle and the return of deoxygenated blood from the heart muscle to the right atrium is called
Systemic circulation
Pulmonary circulation
Coronary circulation
Hepatic portal circulation
As we have learnt:
Coronary circulation
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So,
Coronary circulation is the movement of oxygenated blood from the ascending aorta to the heart muscle and the return of deoxygenated blood from the heart muscle to the right atrium. Hence, the correct answer is option c.