In which of the following ways are the mentioned chemical reactions and tunneling reactions alike
A．In both, reacting molecules have to rise over the barrier between the two wells.
B．In both types of reactions, a transition is made from the bottom of one potential well to the bottom of another.
C．In both types of reactions, reacting molecules are able to go through the barrier between the two wells.
D．In neither type of reaction does the rate of a chemical reaction depend on its activation energy.