Interval training maximizes cardiovascular benefits, so it can quickly increase stroke volume, making your heart stronger, and more efficient. It also decreases your risk of heart disease and high blood pressure.
I'm going to say B because the other answers just don't seem to make sense.
Explanation:
In order for a fitness program to be fully effective, exercises that address all fitness components - cardio endurance, resistance training, and flexibility - must be incorporated on a regular basis. Focusing on just one of these components will hurt performance in other areas
Ethnocentrism
-noun
evaluation of other cultures according to preconceptions originating in the standards and customs of one's own culture.
