Answer
$I$ region
Work Step by Step
When we reverse the digits of $101$, we get $101$. This means that $101$ is a palindromic number.
$101$ is not an even number.
A - the set of palindromic numbers
B - the set of even numbers
$101$ belongs in A but not in B; therefore, it belongs in the region that is inside of the circle for A but not the circle for B: the $I$ region.
