a$)$ The given code is used to take inputs from pin $1$ and pin $0$ of Port $B$ and send a character

to Port $D$ based on the values of the two input pins. Unfortunately, both Port B and Port

D are not available for use anymore.

Modify this program to use pin $4$ and pin $3$ of Port A $($instead of pin $1$ and pin $0$ of Port

$B)$ and send the output to Port $C($instead of Port $D).$

You just need to rewrite the lines that need to change.

points$]$