The figure above shows a block on a normal horizontal surface whose other ends are fixed to walls. A light string attached to one side of theblock initially lies straight across the surface, as shown. The other end of the string is free to move. There is significant friction between the block and the surface, but negligible friction between the spring and surface. The block is displaced a distance $\displaystyle {d}$ and released from rest. Which of the folowing best represents the shape of the string a short time later?