Of the twelve participants in a certain competition, half are male, and half of the males are younger than 18 years of age. If half of the female competitors are also younger than 18 years of age, into how many distinct groups of 4 competitors could the participants be divided if each group must contain two males under 18 years of age and 2 females over 18 years of age?  Pick:	A) 3	B) 4	C) 6	D) 9	E) 20
half are male --&gt; 6 males   half the males are under 18 --&gt; 3 males under 18   same for females --&gt; 3 females above 18   groups of four ( out of which 2 are males below 18 and 2 are females above 18) = 3C2 * 3C2 = 3*3= 
<gadget id="calculator">3*3</gadget>
<output>9</output>
9   ANS:9
<result>D</result>
Of the twelve participants in a certain competition, half are male, and half of the males are younger than 18 years of age. If half of the female competitors are also younger than 18 years of age, into how many distinct groups of 4 competitors could the participants be divided if each group must contain two males under 18 years of age and 2 females over 18 years of age?