A small block on a frictionless, horizontal surface has a mass of m$.$ It is attached to a massless cord passing through a hole in the surface. The block is originally revolving at a distance of $0\mathrm{.}300$ m from the hole with an angular speed of $2\mathrm{.}43$ rad$/$s$.$ The cord is then pulled from below, shortening the radius of the circle in which the block revolves to $0\mathrm{.}150$ m$.$ Consider the block as a point particle. What is the new angular speed? A$)2\mathrm{.}43$ rad$/$s B$)4\mathrm{.}86$ rad$/$s C$)7\mathrm{.}29$ rad$/$s D$)9\mathrm{.}72$ rad$/$s E$)12\mathrm{.}2$ rad$/$s