Which of the Following Reactions Below Is a Decomposition Reaction $\rightarrow$

Which of the following reactions below is a decomposition reaction?

A) C₇H₈O₂ (l) + 8 O₂ (g) $\rightarrow$ 7 CO₂ (g) + 4 H₂O (l)
B) 2 KClO₃ (s) $\rightarrow$ 2 KCl (s) + 3 O₂ (g)
C) 2 Cr (s) + 3 Cl₂ (g) $\rightarrow$ 2 CrCl₃ (s)
D) 6 Li (s) + N₂ (g) $\rightarrow$ 2 Li₃N (s)