Using the Redox Reaction Below Determine Which Element Is Oxidized $\rarr$

Multiple Choice

Using the redox reaction below determine which element is oxidized and which is reduced. 4NH₃ + 3Ca(ClO) ₂ $\rarr$ 2N₂ + 6H₂O + 3CaCl₂

A) H is oxidized and N is reduced
B) N is oxidized and Cl is reduced
C) N is oxidized and O is reduced
D) Cl is oxidized and O is reduced
E) Cl is oxidized and N is reduced