___ is considered by your book to be a "major area of vulnerability" because ______ Accounts receivable; even when sales are good, if payment related to those sales is delayed a business can run out of cash. Accounts payable; companies spend too much money and then can't find the funds to pay their bills. Accounts receivable; only a small number of customers are typically behind on paying their bills. Accounts payable; not paying your bills on time saves your company money.