What is the definition of physical fitness?
a.
the body’s ability to be efficient during movement
b.
an activity that is planned, structured, and monitored
c.
an activity that reaches a level of moderate intensity
d.
the change in energy required to go from standing to running

A. the body’s ability to be efficient during movement.

Explanation:

Physical fitness can be defined as the body's ability to be efficient during movement. Physical fitness is generally considered a good indicator of overall physical health. A person who is physically fit will move efficiently and accurately, as well as relatively swiftly and quickly. The best way to increase you physical fitness is to exercise regularly and have an active lifestyle.