I.M. Rich company had sales revenue of $480,000 and its cash received from customers was $400,000. The difference between these amounts reflects:

Group of answer choices

An $80,000 increase in accounts receivable.

An $80,000 increase in accounts payable.

An $80,000 decrease in accounts payable.

An $80,000 decrease in accounts receivable.

An $80,000 increase in gross profit.

OR a bookkeeping error.