X + Y = Z is an equilibrium reaction. The addition of a catalyst?

A.

increase the amount of Z produced in a given time

B.

increases the rate of change in concentrations of X, Y and Z

C.

increases the rate of disapearance of X and Y

D.

increases the rate of the forward reaction

E.

decreases the amounts of X and Y left after the attainment of equilibrium

Correct answer is B

No explanation has been provided for this answer.