In how many different number of ways 4 boys and 2 girls can sit on a bench?  Choose the correct choice
A) 700
B) 710
C) 720
D) 730
E) 740
npn = n!   6p6 = 6 × 5 × 4 × 3 × 2 × 1 = 720   720
<result>C</result>
In how many different number of ways 4 boys and 2 girls can sit on a bench?