blue Book Two answer problems?

<p>I bought the bluebook, and in the end of a practice test, theres two answers.
one says diff. answer
and the other one was somehting else, it looked like this. </p>

<p>1 A
D</p>

<p>What is this?</p>

<p>what pageee</p>

<p>Are you by any chance referring to the difficultly level displayed next to the answer?</p>