Final answer:
Heredity is the risk factor for coronary artery disease that cannot be corrected as one's genetic background is unchangeable.
Step-by-step explanation:
The risk factor for coronary artery disease that cannot be corrected is C.Heredity. Genetics play a significant role, and one cannot change their family history.
In the context of coronary artery disease (CAD), certain risk factors are modifiable, meaning they can be changed or managed through lifestyle adjustments or medical interventions. Smoking cessation, proper management of diabetes, and controlling hypertension are all examples of correctable risk factors that significantly reduce the likelihood of CAD. Lifestyle changes such as a healthy diet and exercise are crucial in managing these risks. However, some risk factors are non-modifiable and cannot be changed. Of the options provided, heredity falls into the non-modifiable category, as one cannot alter their genetic background. A family history of cardiovascular disease is known to increase an individual's risk of developing CAD, and the presence of cardiovascular disease in parents triples the risk for an individual. In addressing CAD, it's vital to focus on modifiable risks while acknowledging and monitoring the influence of non-modifiable factors like heredity.