Risk factors for the disease include lack of physical exercise, smoking, High blood pressure, depression and sometimes poor diet. The disease occurs when there is a reduction of blood flow and oxygen to the heart muscle.
To prevent the onset, engage in physical exercises to keep fit and avoid the risk factors for example intake of excessive alcohol, smoking, and eat healthy food.
Treatment will involve prescribed medications and a lot of the above preventive measures that have already been mentioned.
Maybe ask your teacher for help im sure she can help you with that
I believe its A, "<span>to bring in oxygen and remove carbon dioxide from the body" </span>
