The following are some statements about oxyacids of VA group elements
I) The salt of nitric contains `No_(3)^(-)` ion
II) The salt of phosphoric acid contains `PO_(4)^(3-)` ion
III) Salts of meta phosphoricn acid contains `HPO_(3)^(2-)` ion
The correct combination is
A. All are correct
B. I, III are correct
C. II, III are correct
D. I, II are correct