Which of the following best describes the exercise principle of specificity?

I didn't see the multiple choice, but..

The Specificity Principle is a principle that states that exercising a certain body part, component of the body, or particular skill primarily develops that part or skill.In exercise: Specificity. The principle of specificity derives from the observation that the adaptation of the body or change in physical fitness is specific to the type of training undertaken. Quite simply this means that if a fitness objective is to increase flexibility, then flexibility training must

In exercise: Specificity. The principle of specificity derives from the observation that the adaptation of the body or change in physical fitness is specific to the type of training undertaken. Quite simply this means that a fitness objective is to increase flexibility.

(please mark this brainliest)

I hope this helps!