Which Statement Describes the Situation When a Catalyst Is Used

Which statement describes the situation when a catalyst is used in a reaction? Remember that the book says that the term 'catalyst' will be used to mean a positive catalyst.

A) The forward reaction rate is increased while the reverse reaction rate is slowed.
B) The heat change for the reaction becomes more exothermic.
C) The final (equilibrium) amounts of reactants and products are not affected.
D) The activation energy for the reverse reaction is increased.
E) The activation energy for the forward reaction is not altered.