Blake is a member of the cross-country track team and runs six days a week. He also helps around the house by washing his family's cars, mowing the grass, and taking out the garbage and recycling. Which of the following describes a possible benefit of Blake's physical activity?

a. Blake may be less likely to commit to a healthy future.
B. Blake may have a decreased chance of disease.
C. Blake may require more assistance performing daily tasks.
D. Blake may struggle to achieve healthy body fat levels.