DVD with an initial angular speed of $4\mathrm{.}0$ rad$/$s accelerates at a rate of $2\mathrm{.}0$ rad$/$s$2,$ causing the DVD to slow down its rotation. What angular distance has the DVD rotated through before coming torest? a$)3\mathrm{.}0$ rad b$)4\mathrm{.}0$ rad c$)5\mathrm{.}0$ rad d$)6\mathrm{.}0$ rad e$)7\mathrm{.}0$ rad