A 60-year-old male presents to his primary care provider reporting intermittent chest pain, often with exertion. He is diagnosed with atherosclerosis. The management of this disease will include:

A good and healthy food, exercise, medications and loss of weight.

Explanation: A healthy diet and exercise can help a diagnosed patient. Treatments such as medications or procedures to clean up blocked arteries.

Quit smoking because smoking destroys the arteries. Exercise more during the week because exercise can keep the condition of the muscles to use oxygen more efficiently and effectively.

the answer is:

carbon dioxide