Answer:
second option
Step-by-step explanation:
Let's find A ∪ B. ∪ (union) means all of the numbers in the sets so A ∪ B = {1, 2, 3, 4, 5, 6}. Now we need to find C ∩ {1, 2, 3, 4, 5, 6}. ∩ (intersection means the common elements between the sets so the answer is {2, 3}.
