Nitrogen Triiodide Can Be Prepared as the Ammoniate,NI₃·NH₃ $\rightarrow$ N₂ + 2NH₃ + 3I₂
in This Reaction,nitrogen Undergoes a Explosive

Nitrogen triiodide can be prepared as the ammoniate,NI₃·NH₃.This compound is explosive when dry and decomposes according to the reaction below. 2NI₃·NH₃ $\rightarrow$ N₂ + 2NH₃ + 3I₂
In this reaction,nitrogen undergoes a change in oxidation number from

A) +3 to 0.
B) +3 to -3.
C) There is no change in oxidation number occurs because this is not a redox reaction.
D) +6 to 0.
E) +1 to 0.