[单选题]
A wheel of moment ofag52 l)tri :vv +pkmr2 inertia (6-rmx a hhkw.2kq wt8of $5.00 \; kgm^{2}$ starts from rest and accelerates under a constant torque of 3.00 Nm for 8.00 s. What is the wheel's rotational kinetic energy at the end of 8.00 s?
A. $57.6 \; J$
B. $64.0 \; J$
C. $78.8 \; J$
D. $122 \; J$
