The Formula (NH₄)₃PO₄ Indicates That One Formula Unit of This

The formula (NH₄) ₃PO₄ indicates that one formula unit of this compound is composed of

A) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,four atoms of oxygen,and six extra electrons.
B) three atoms of nitrogen,twelve atoms of hydrogen,four atoms of phosphorus,and four atoms of oxygen.
C) one atom of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen.
D) three atoms of nitrogen,seven atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen.
E) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen.