In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?	Choose the correct choice:
A) 200	B) 205	C) 209	D) 250	E) 300
=&gt;1 boy 3 girls or 2 boys 2 girls or 3 boys 1 girl or 4 boys   =&gt; (62091 x 42093) + (62092 x 42092) + (62093 x 42091) + (62094)=&gt; 24+90+80+15= 
<gadget id="calculator">24+90+80+15</gadget>
<output>209</output>
&gt;209   ANSWER 209
<result>C</result>
In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?