hes talking about ONLY mitosis...if u remember cancer is a result of uncontrolled mitosis ONLYView attachment 53216
Answer's B
but doesn't it also only occur in A and D?
what else occurs in A and D then? :S
well its confusing but a combination of 2 nd 3 are more likely bcz the chances of bacterial transmission increases with greater no of people nd lack of washing facilities whereas for the 1st one ...bact transmission can be prevented widout refregeration like proper packing so and so.....