Find the Work Performed When the Given Force F Is Applied

Find the work performed when the given force F is applied to an object, whose resulting motion is represented by the displacement vector d. Assume the force is in pounds and the displacement is measured in feet. ​

A) 646 ft-lb
B) 645 ft-lb
C) 643 ft-lb
D) 648 ft-lb
E) 650 ft-lb