Imagine a situation where you have three sets: A, B, and C. Set A is the names of people who ate food A, set B is of people who ate food B, and so on. A person could have eaten more than one food type so a name could, for example, be in both set A and C. You have another set of names D. This is a set of names of people who got food poisoning. How would you go about finding which food caused the food poisoning