Judges will select 5 finalists from the 7 contestants entered in a singing competition. The judges will then rank the contestants and award prizes to the 3 highest ranked contestants: a blue ribbon for first place, a red ribbon for second place, and a yellow ribbon for third place. How many different arrangements of prize-winners are possible?  Choose one:	A) 10	B) 21	C) 210	D) 420	E) 1,260
First Select 5 from 7 contestants and then select top 3 from those 5 =   72105*52103 = 42 * 5= 
<gadget id="calculator">42 * 5</gadget>
<output>210</output>
210   ANS:210
<result>C</result>
Judges will select 5 finalists from the 7 contestants entered in a singing competition. The judges will then rank the contestants and award prizes to the 3 highest ranked contestants: a blue ribbon for first place, a red ribbon for second place, and a yellow ribbon for third place. How many different arrangements of prize-winners are possible?