In a class there are 20 boys and 30 girls. In how many ways can a boy and a girl be selected?	Choose the most appropriate option:
A) 400	B) 500	C) 600	D) 530	E) 630
Explanation:   We can select one boy from 20 boys in 20 ways.   We select one girl from 30 girls in 30 ways   We select a boy and girl in 20 * 30 ways i.e., = 600 ways.   Answer: Option 600
<result>C</result>
In a class there are 20 boys and 30 girls. In how many ways can a boy and a girl be selected?