The Kinetics of a Reaction Is Studied at 25ºC and at 50ºC

The kinetics of a reaction is studied at 25ºC and at 50ºC. Which of the following statements is correct?

A) The rate of the reaction at 50ºC will be lower than the rate at 25ºC, since the molecules will be moving too fast to collide effectively.
B) The rate of the reaction at 50ºC will be twice that of the rate at 25ºC, since the temperature has doubled.
C) The rate of the reaction at 50ºC will be greater than the rate at 25ºC, since the activation energy will be lower at the higher temperature.
D) The rate of the reaction at 50ºC will be greater than the rate at 25ºC, since a greater fraction of the molecules will possess sufficient energy to react at the higher temperature.
E) None of these statements is correct.