Robert ate 12 chocolates, Nickel ate 3 chocolates. How many more chocolates did Robert ate than nickel?	Select.
A) A)4
B) B)7
C) C)9
D) D)5
E) E)2
12-3= 
<gadget id="calculator">12-3</gadget>
<output>9</output>
9. Answer is 9
<result>C</result>
Robert ate 12 chocolates, Nickel ate 3 chocolates. How many more chocolates did Robert ate than nickel?