Consider the Particulate Level Representation of a Reaction of the Form

Consider the particulate level representation of a reaction of the form: Based on just this diagram,which of the following does not correctly describes this reaction?

A) The collision was ineffective.
B) Product did not form.
C) The orientation of the reactants to with respect to each other was wrong.
D) The molecules had too much potential energy.
E) All of the above do describe this reaction.