What distinguishes the exercise principle of progression from that of overload? A. Progression requires that workouts get progressively more difficult, while overload does not. B. Progression deals with increasing fitness goals rather than the physical challenge of a workout. C. Progression concerns the overall fitness goals, while overload deals with the schedule of exercise activities. D. Progression and overload are actually the same fitness principle.

The correct answer is A. Progression requires that workouts get progressively more difficult, while overload does not.<br /><br />Explanation:<br />- The principle of progression involves gradually increasing the intensity, duration, frequency, or type of exercise to continue improving fitness levels. It ensures that as the body adapts to a certain level of exercise, the challenge is increased to promote further improvement.<br />- The principle of overload, on the other hand, refers to the need to increase the demands on the body in order to make gains in muscle strength, endurance, or overall fitness. This means exercising at a level beyond what the body is accustomed to, but it doesn't necessarily imply a gradual increase like progression does.