$2)$ The port directions and output values were initialized using the code lines in $\frac{C}{C}++$ as follows.

$P4$DIR $=087$;

$P4$OUT $=083$;

In this setting, two buttons are pressed, and the other buttons are not pressed. The value stored in P$4$IN is

$0$xE$3.$ What are the buttons that are pressed? The buttons are labeled from $($A$)$ through $($L$).$

Your answer:

$($A correct answer, unsupported by calculations, explanation, or algebraic work will receive no credit$)$

Buttons?

C$,$ D$\_$