If x is an odd negative integer and y is an even integer, which of the following statements must be true? I. (3x + 2y) is positive integer II. (xy)^2 is positive integer III. (y^2 - x) is positive integer  Choose the most appropriate option:  A) I only  B) II only  C) II,III only  D) III only  E) none of these
I. It is true if 3x &lt; 2y   II. It is always positive   III. It is true   Answer : II,III only
<result>C</result>
If x is an odd negative integer and y is an even integer, which of the following statements must be true? I. (3x + 2y) is positive integer II. (xy)^2 is positive integer III. (y^2 - x) is positive integer