Starting from the origin, a body oscillates simple harmonically with a period of $$2\,s$$. After what time will its kinetic energy be 75% of the total energy?

A

$$\dfrac{1}{12}\,s$$

B

$$\dfrac{1}{6}\,s$$

C

$$\dfrac{1}{4}\,s$$

D

$$\dfrac{1}{3}\,s$$