Answer
$III$ region
Work Step by Step
When we reverse the digits of $9778$, we get $8779$. This means that $9778$ is not a palindromic number.
$9778$ is an even number.
A - the set of palindromic numbers
B - the set of even numbers
$9778$ belongs in B but not in A; therefore, it belongs in the region that is inside of the circle for B but not the circle for A: the $III$ region.
