If p and x are non-negative numbers and y is a non-positive number, then which o...【小站备考】

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If p and x are non-negative numbers and y is a non-positive number, then which of the following must be true?Indicate all possible values.

A.px > xy

B.px > 0

C.pxy > –1

D.pxy ≤ 0

E.px ≠ y

F.x ≥ py

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