The answer is C. influenza, chicken pox, and colds because influenza, chicken pox, and colds (called rhinovirus) are all caused by viruses. Food poisoning is not a virus, athlete's foot is a fungal infection, and strep throat is a bacterial infection.
So it depends on what your planing on.
But a good well-developed plan should have a
Main - so what it’s about and what your researching about.
evidence- to back up your plan and your ideas
Point - what’s your point and your conclusion
Answer:
the only answer that makes sense to me is C.