If mn > 0, which of the following must be negative? Select
A) mn	B) mn^2	C) m/-n	D) m/n	E) m+n
Given mn&gt; 0 So both will be the positive integers. If both are positive, then A,B,D,E also positive.   Answer :m/-n
<result>C</result>
If mn > 0, which of the following must be negative?