A Child Pulls on a Wagon with a Force of ${~N}$

Multiple Choice

A child pulls on a wagon with a force of 75 ${~N}$ If the wagon moves a total of $42 \mathrm {~m}$ in $3.1 \mathrm {~min} \text {, }$ what is the average power delivered by the child?

A) 17 W
B) 21 W
C) 22 W
D) 26 W