Question Detail
Question
If \(A \cup B = A \cap B\), then:
Correct Answer
Option A is the correct answer.
Detailed Explanation
A ∪ B = A ∩ B implies every element in A ∪ B is in both A and B. This forces A = B.
Hint
Draw a Venn diagram: the only way the union equals the intersection is if the sets are identical.