During a cycle of the flywheel having $$I$$ as mass moment of inertia, $$\omega_{av}$$ as the as the average rotational speed and $$K_{es}$$ is the coefficient of fluctuation of speed. The maximum fluctuation of energy $$E_{t}$$ is _____.

A

$$\frac{1}{2}Iw_{av}(w_{max}-w_{min})$$

B

$$I(w^{2}_{max}-w^{2}_{min})$$

C

$$\frac{1}{2}IK_{es}w^{2}_{av}$$

D

$$IK_{es}w^{2}_{av}$$