Question

When is A called proper subset of B?

• A. A ⊂ B
• B. A = B
• C. A ≠ B
• D. Both A & B
• E. Both A & C

Answer 1

The correct option is E

Both A & C

For 2 sets A, B, A is called proper subset of B if A ⊂ B and A ≠ B.