Correct Answer: C
Explanation:
If p and q are positive integers, x and y are negative integers, and if p > q and x > y, which o the following must be less than zero?
p and q are positive integers and p > q, so q - p < 0 ------ I is true
y is a negative integer and q is positive integer, so their product is negative ---------- II is true
If p = 5 and x = -2, then p + x = 5 + (-2) = 3 > 0 , so ----------- III may be false