Explanation:
How Age and Exercise Affect Your Max Heart Rate. The relationship between the heart and exercise has been studied for more than six decades and the research is clear: Max heart rate—the highest heart rate you can safely hit during exercise—decreases with age regardless of lifestyle or level of fitness.
Answer: A. fruits,vegetables, and grains provide the most fiber.
C. Realistic. If your goals are not realistic, then they are un-achievable and you will not make it.