Answer:
The answer is: D) $31,500
Step-by-step explanation:
If Justin didn't account his expenses to his employer, then any extra amount given to him should be added to his gross income. In Justin's case his gross income should be $31,500 ($30,000 + $1,500). On the other hand, if he would have accounted his expenses to his employer, then the $1,500 wouldn't be added to his gross income.