The answer is letter A.
Specificity is a principle in training that
generally requires a person to shift types of exercises in a workout that would
be relevant to the fitness goal of an individual. The training should be aimed
in developing specific areas that a person wants to improve on. If for example
you want to improve cardiovascular endurance, you should be involved in aerobic
activities like running. If you want to build muscles and get good toning, the
specific exercise should be weight training.
It is an important principle in exercise that should always be taken into
consideration to attain fitness goals.
