Question

2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.

On the Venn diagram, which region(s) represent the union of Set A and Set B (A⋃B)?

II
I and III
I, II, and III
I, II, III, and IV

Answer 1

Answer: I and III

Explanation: On a Venn diagram, the union of Set A and Set B (A⋃B) is represented by the regions that belong to either Set A, Set B, or the overlap between the two sets. In this case, the region labeled "I" represents Set A, the region labeled "III" represents Set B, and the overlap contains the elements that are common to both sets.

So, the regions that represent the union of Set A and Set B are regions I and III, making option B the correct answer.