Which is a SMART short-term moderate physical activity goal?
A. Lose 2 pounds each week for 3 weeks.
B. Engage in muscle fitness activities three times per week for 3 weeks.
C. Accumulate 30 minutes of brisk walking every day for 3 weeks.
D. Lose 6 pounds by accumulating 30 minutes of brisk walking every day for 3 weeks.