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The oxidation number of phosphorus in `PH_(4)^(+),PO_(2)^(3-),PO_(4)^(3-) and PO_(3)^(3-)` are respectively :-
A. `-3,+1,+3,+5`
B. `-3,+3,+5,+1`
C. `+3,-3,+5,+1`
D. `-3,+1,+5,+3`

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