How does the fitt principle apply to the development of a successful personal fitness program? a.
the fitt principle individuals determine an effective schedule for different exercise activities.
b.
the fitt principle individuals choose the types of activities that will be most enjoyable for them.
c.
the fitt principle makes it easier for individuals to incorporate lifestyle activities into their fitness programs.
d.
the fitt principle allows individuals to monitor their progress.

The answer is letter D. 

FITT principle stands for Frequency, Intensity, Time, and Type. This principle applies to training programs that an individual might engage himself in. Frequency refers to when you should workout; Intensity refers to how much effort you will put in an exercise routine; Time refers to how long you will perform the exercise; and Type refers to what kinds of exercise you will incorporate in your program. All these things are a measure or a gauge of your progress and how far or how close you are to attaining your fitness goals.

Letter d i believe letter d

It hurts for them at first then they get used to it