Question

what is the \frequency\ element of the f.i.t.t. principle? how many breaks you take during a workout. how long your workouts run. how often you are exercising.

Explanation:

The F.I.T.T. Principle's "Frequency" refers to the rate or interval at which exercise is performed. "How many breaks you take during a workout" relates to rest intervals, not frequency. "How long your workouts run" is about the "Time" element of F.I.T.T. "How often you are exercising" directly defines the frequency of exercise.

Answer:

C. How often you are exercising. (assuming the options are labeled A, B, C as per the order: A. How many breaks you take during a workout, B. How long your workouts run, C. How often you are exercising)