Which of the Following Is Not a Restriction on the Three

Which of the following is not a restriction on the three principles of the collision theory?

A) Not all collisions will result in the formation of products.
B) Only if the charged ions are present in the correct ratio will the reaction occur.
C) Each reaction has an activation energy that must be realized for a reaction to occur.
D) Only if the collision has sufficient energy and proper orientation of the colliding particles can the reaction proceed.