What is collision theory?

A.a theory stating that reactants must collide with products in order for a chemical reaction to occur

B.a theory stating that there must be minimal kinetic energy between products for a chemical reaction to occur

C.a theory stating that a chemical reaction occurs only when reactants strike each other at the correct orientation and with sufficient kinetic energy

D.a theory stating that a chemical reaction occurs only when reactants are placed in separate containers and the containers are then placed close together