Final answer:
This question is about solving various set operations using the given sets A, B, and C.
Step-by-step explanation:
In this question, we are given sets A, B, and C, and we need to solve four questions. To solve each question, we use the concepts of set operations. For example, to find the intersection of sets A and B, we find the elements that are common to both sets. To find the union of sets A and B, we combine all the elements from both sets without duplicating any elements. We can use the given information about the sets to solve each question step by step.