When heated, ammonium nitrate, $\text{NH}_4\text{NO}_3$, may break down explosively. $\text{NH}_4\text{NO}_3 \rightarrow \text{N}_2\text{O} + 2\text{H}_2\text{O}$ How do the oxidation numbers of the two nitrogen atoms in $\text{NH}_4\text{NO}_3$ change as this reaction occurs?
- A$-2, -4$
- B$+2, +6$
- C$+4, -6$
- D$+4, -4$