5. Which of the following are true for every negative integer x and every negative integer y ? Explain? (1) x y is a positive integer. (2) x y is a natural number. (3) x + y is a negative integer. (4) x /y is a rational. (5) y /x is a rational. A. (1), (2) and (4) only B. (1), (2) and (5) only C. (1), (3) and (4) only D. (2), (3) and (4) only E. (2), (3), (4) and (5) only