Final answer:
A possible example of nonempty sets A, B, and C that satisfy the given conditions is A = {1, 2}, B = {2, 3}, C = {1}.
Step-by-step explanation:
A possible example of nonempty sets A, B, and C that satisfy the given conditions C ⊆ (A ∪ B) and A ∩ B ∩ C is:
- A = {1, 2}
- B = {2, 3}
- C = {1}
In this example, C is a subset of the union of A and B, and the intersection of A, B, and C is the set {1}, which is nonempty.