Consider the Reaction: M + N $\overrightarrow { \overleftarrow { }}$

Consider the reaction: M + N $\overrightarrow { \overleftarrow { }}$ Y + Z Which of the following is correct?

A) The reaction is reversible
B) At chemical equilibrium, increasing the concentration of M will drive the reaction to the left
C) At chemical equilibrium, decreasing the concentration of M will drive the reaction to the left
D) Both the reaction is reversible and at chemical equilibrium, increasing the concentration of M will drive the reaction to the left are correct
E) Both the reaction is reversible and at chemical equilibrium, decreasing the concentration of M will drive the reaction to the left are correct