If Y < X and XM < YM, what must be true?	Pick one.
A) M < X B) M < Y. C) X < 0. D) M < 0 E) Y < 0
X&gt;Y, bus as soon as M is multiplied to both sides inequality sign changes.   This is only possible when -ve is multiplied on both sides. That means M is -ve   M &lt; 0 is the answer
<result>D</result>
If Y < X and XM < YM, what must be true?