Physical activity is defined as
A. a set of attributes or characteristics that people have or achieve that relates to the ability to perform physical activity
B. a type of physical activity consisting of planned, structured, and repetitive bodily movement done to improve and/or maintain one or more components of physical fitness
C. a broad range of activities that are designed to enhance reaction and hand-eye coordination
D. any bodily movement produced by the contraction of skeletal muscles that results in a substantial increase in caloric requirements over resting energy expenditure
Answer: D