If a and b are non-zero integers, and \frac{a}{b} > 1 , then which of the following must be true?
a a>b
b 2a>b
c a^2< b^2
d ab> b
e a^3 < b^3
a a>b
b 2a>b
c a^2< b^2
d ab> b
e a^3 < b^3