If x, y, and z are negative integers and 3x - 3y = -3z, then which of the following statements must be true?
I.	x > y> z
II.	x = z
III. x > y
Choose the correct choice:  A) I and II  B) I only  C) II only  D) III only  E) None
3x-3y=-3z   x-y=-z   Since z&lt;0; -z&gt;0   x-y&gt;0   x&gt;y   III correct.   We can't say much about z though;   x=-5; y=-100; z=-95   I and II incorrect.   Ans:III only
<result>D</result>
If x, y, and z are negative integers and 3x - 3y = -3z, then which of the following statements must be true?
I.	x > y> z
II.	x = z
III. x > y