In Which of the Following Reactions Does a Decrease in the Volume

In which of the following reactions does a decrease in the volume of the reaction vessel at constant temperature favor the formation of the products?

A) 2 H₂(g) + O₂(g) $\rightleftharpoons$ 2 H₂O(g)
B) NO₂(g) + CO(g) $\rightleftharpoons$ NO(g) + CO₂(g)
C) H₂(g) + I₂(g) $\rightleftharpoons$ 2 HI(g)
D) 2 O₃(g) $\rightleftharpoons$ 3 O₂(g)
E) MgCO₃(s) $\rightleftharpoons$ MgO(s) + CO₂(g)