​Research has generally found that a program of regular physical activity

A) ​can add as much as two years to people's lives.
B) ​can lower levels of disability during old age.
C) ​can accomplish the outcomes in both a and B
D) ​results in more deaths than an inactive lifestyle.

Physical Activity

Any bodily movement produced by skeletal muscles that require energy expenditure, including activities undertaken while working, playing, carrying out household chores, traveling, and engaging in recreational pursuits.

Disability

A condition, either physical or mental, that limits a person's movements, senses, or activities.

Old Age

The latter part of life, typically considered to start in the late 60s or early 70s, characterized by increased frailty and decreased physical ability.