The balanced equation for the decomposition of sodium azide is __________.

A、NaN3 (s) → Na (s) + N2 (g)
B、2NaN3 (s) → Na2 (s) + 3N2 (g)
C、2NaN3 (s) → 2Na (s) + 2N2 (g)
D、2NaN3 (s) → 2Na (s) + 3N2 (g)
E、NaN3 (s) → Na (s) + N2 (g) + N (g)