Kate Is a Healthy 65-Year-Old Female Who Is Interested in Increasing

Kate is a healthy 65-year-old female who is interested in increasing her physical activity. Which of the following workouts would meet the minimum recommendations for her age group?

A) Doing a 30-minute walk on the treadmill four days per week
B) Doing strength-training exercises twice a week
C) Doing a combination of strength-training exercises twice a week and walking 30 minutes a day five times a week
D) Doing a 20-minute jog twice a week and stretching twice a week