Question

If $A$ is a proper subset of $B$, then $A\cap B=$

• A. $A$
• B. $B$
• C. $\varphi$
• D. $A\cup B$

Answer 1

The correct option is A $A$

Since A is a proper subset of $B$, all elements of $A$ are present in $B$.

$A\cap B=A$