Which of the Following Reactions Would You Predict Is Endothermic $\rightarrow$

Which of the following reactions would you predict is endothermic?

A) 2 H₂ (g) + O₂g) $\rightarrow$ 2 H₂ O(l)
B) Na(s) + 1/2 CL₂(g) $\rightarrow$ NaCl (s)
C) 2 Cl(g) $\rightarrow$ CL₂(g)
D) 3 CO₂(g) + 4 H₂O(g) $\rightarrow$ C₃H₈(g) + 5 O₂(g)
E) H₂O₂ (aq) $\rightarrow$ H₂O(l) + 1/2 O₂ (s)