Which statement is correct for the reaction below?


4X+Z yields 2R+2S

A: The rate of formation of R is one-half the rate of the disappearance of Z.

B: The rate of disappearance of Z is one-fourth of the rate of disappearance of X.

C: The rate of formation of R is double the rate of formation of S.

D: The rate of formation of S is double the rate of disappearance of X.