Which of the following are correct about rate of reaction where each statement given below may represent different contexts?
(A) For a given reaction average rate and instantaneous rate can never be equal.
(B) According to Arrhenius rate of reaction increases with increase in temperature as fraction of collisions with required orientation for fruitful process increases
(C) Concentration of catalyst affect rate of reaction.
(D) Small proportion of enzyme is sufficient to increase the rate of biological reaction.