Final answer:
Terms like response, stabilization, and suppression pertain to the immune system's functioning and are not part of the sidestep life cycle stages. Class switching, specifically, happens during the secondary immune response for more effective pathogen elimination.
Step-by-step explanation:
The terms response, stabilization, and suppression are part of the broader topic of the immune system's reaction to pathogens. In the context of the question, these terms refer to the different stages within the immune system's dealing with an infection or antigen exposure. They are not directly aligned with the sidestep life cycle phases: pre-event, event, and post-event. On the other hand, the question about class switching pertains specifically to the functioning of the immune system. Class switching occurs during the secondary response, where the immune system adapts to produce different classes of antibodies that are more effective in eliminating the pathogen.