Now that Larry recently turned 35, he's concerned about getting old. He heard that establishing a good aerobic exercise habit will help him age better. He bought some athletic shoes and is ready to run into a new healthy future. What running schedule should Larry follow to meet recommendations for aerobic exercise? a. 25 minutes 4 days a week b. 50 minutes 3 days a week c. 60 minutes 2 days a week d. 15 minutes 7 days a week