18) A package is oscillating on a spring scale with a period of 4. 60 s. At time t = 0. 00 s the package has zero speed and is at x = 8. 30 cm. At what time after t = 0. 00 s will the package first be at x = 4. 15 cm? A) 0. 575 s B) 0. 767 s C) 1. 15 s D) 1. 30 s E) 1. 53 s