Question

$\text{For any two sets}A\&B\text{if}$
$A\subset B,\text{then}A\cap B=$

• A. $A$
• B. $B$
• C. $A\cup B$

Answer 1

The correct option is A $A$

Given two sets $A\&B$ such that:
$A\subset B\Rightarrow$ Every element of set $A$ is also and element of set $B.$
This can be represented using venn diagram as:

$\Rightarrow$ The common elements of two sets are the elements of set $A$ itself.
$\Rightarrow A\cap B=A.$