If Y < X and XM < YM, what must be true  Choose the most appropriate option.
A) M < X.
B) M < Y.
C) M < 0.
D) X < 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>C</result>
If Y < X and XM < YM, what must be true