Which Would Be True About the Following Reaction? M

Multiple Choice

Which would be true about the following reaction? M + N Y + Z

A) Adding a catalyst would alter the final concentrations of products and reactants at equilibrium.
B) Starting at chemical equilibrium, increasing the concentration of M will transiently increase the rate of formation of Y and Z.
C) Starting at chemical equilibrium, decreasing the concentration of M will increase the concentration of Y and Z.
D) Both the reaction is reversible and at chemical equilibrium and increasing the concentration of M will drive the reaction to the left are correct.
E) Because the reactants and products are different molecules, this is not a reversible reaction.