How can you tell if your heart is more fit as a result of an exercise program?

There would be reduction in my blood pressure and better blood flow.

Explanation:

The muscle of my heart gets to be more efficient and the heart pumps blood better. Also my blood pressure gets to be lowered by about 5 to 7 points. In my body, the heart is able to pump blood in the entire body. With each heartbeat,more blood is pushed out and this would help to keep blood pressure under control. Oxygen is taken out of the blood, causing my heart to work better even in strenuous situations. Blood travels better in my body because exercise creates more paths for blood to travel.

Exercise would cause better blood flow in the small blood vessels around my heart. This would help prevent heart attacks as clogs in the arteries could be responsible for this. Exercise flushes out cholesterol from the body thereby increasing my fitness.

answer; i do believe the correct answer is (25) times faster;

b is the correct answer