Which of the Following Statements Regarding Reaction Rates and Kinetic

Which of the following statements regarding reaction rates and kinetic molecular theory is NOT true?

A) Higher concentrations of reactants typically lead to greater reaction rates because a larger number of effective molecular collisions occur.
B) Collisions between product molecules that reform reactant molecules do not affect the overall rate of reaction.
C) The actual dependence of reaction rate on concentration must be determined experimentally because it depends on the reaction mechanism.
D) At t = 0,the maximum rate should be observed because only reactant molecules are present.
E) As the reaction proceeds,fewer reactant molecules are present and the reaction rate typically decreases.