A $20.0 \mathrm{~N}$ Force Is Applied at an Angle of 40 $4.00 \mathrm{~kg}$

A $20.0 \mathrm{~N}$ force is applied at an angle of 40.0 degrees above the horizontal to a $4.00 \mathrm{~kg}$ box. The box moves a horizontal distance of 4.00 meters. Friction is negligible. The work done by the $20.0 \mathrm{~N}$ force is

A) $46.3 \mathrm{~J}$ .
B) $50.1 \mathrm{~J}$ .
C) $75.0 \mathrm{~J}$ .
D) $40.5 \mathrm{~J}$ .
E) $61.3 \mathrm{~J}$ .