If 3<x<6<y<8, then what is the greatest possible positive integer difference of x and y?  Choose the correct choice from the following choices:
A) 3
B) 4
C) 5
D) 6
E) 7
3 &lt; x &lt; 6 &lt; y &lt; 8;   3 &lt; x   y &lt; 8   3 + y &lt; x + 8   y - x &lt; 5.   Positive integer difference is 4 (for example y = 7.5 and x = 3.5)   Answer: 4.
<result>B</result>
If 3<x<6<y<8, then what is the greatest possible positive integer difference of x and y?