A $1\mathrm{.}0-$kg ball on the end of a string is whirled at a constant speed of $2\mathrm{.}0\frac{m}{s}$ in a horizontal circle of radius $1\mathrm{.}5$ m $.$ What is the work done by the centripetal force during one revolution?

A$)$ zero joules

B$)2\mathrm{.}7$ J

C$)6\mathrm{.}0$ J

D$)25$ J

E$)33$ J