In how many different number of ways 4 boys and 3 girls can sit on a bench such that girls always sit together. Choose the most appropriate option.
A) 680 B) 700 C) 720 D) 740 E) 760
720   720
<result>C</result>
In how many different number of ways 4 boys and 3 girls can sit on a bench such that girls always sit together.