If a and b are integers, ab = -5, and a - b > 0, which of the following must be ...【小站备考】

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If a and b are integers, ab = -5, and a - b > 0, which of the following must be true? I.a>-1 II.b is odd III.|a|=5

A.I only

B.II only

C.I and II only

D.I and III only

E.I, II, and III

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