For the Reaction: CH₄(g)+ 2 H₂O(g)⇌ CO₂(g)+ 4 H₂(g),Δ_rH° =

For the reaction: CH₄(g) + 2 H₂O(g) ⇌ CO₂(g) + 4 H₂(g) ,Δ_rH° = +190 kJ,when catalyst is added:

A) the reaction shifts to the right
B) the reaction shifts to the left
C) the ΔH° increases
D) the temperature increases
E) there is no change,catalyst changes reaction rate only