If 6<x<10<y<17, then what is the greatest possible positive integer difference of x and y?  Choose the correct choice.
A) 3
B) 4
C) 10
D) 6
E) 7
Let x=6.1 and y=16.1   Greatest possible difference=16.1-6.1= 
<gadget id="calculator">16.1-6.1</gadget>
<output>10</output>
10   Answer 10
<result>C</result>
If 6<x<10<y<17, then what is the greatest possible positive integer difference of x and y?