8. The position of a block attached to a horizontal spring is represented by the following equation: x (t) = 4sin (V5t) where x (t) is measured in inches and t is measured in seconds. In the in rvalt E [0, 1], when is the block at rest? Round to three decimal places. A. 0.566 seconds B. 0.667 seconds C. 0.702 seconds D. 0.240 seconds E. 0.834 seconds