A Plyometric Exercise Is Defined as Movements in Which

A plyometric exercise is defined as movements in which:

A) a muscle or muscle group is quickly stretched,then immediately contracts with a maximal concentric force
B) the aerobic capacity of the body to allow for repetitive movements that are sustained for long periods is increased
C) the body's coordination,proprioception and dynamic balance while in motion is increased
D) a muscle's distal attachment is fixed,and the body must overcome the resistance applied to it in order to move