Answer:
The correct answer is:
O If the cost of making the furniture is less than the price Wally believes he will be able to sell it for
Wally should only sell his furniture at a craft fair if he believes he can make a profit. If the cost of making the furniture is more than the price he can sell it for, he will lose money.
The other options are not relevant to whether or not Wally should sell his furniture at a craft fair. The number of people attending the craft fair and the demand for custom furniture are both important factors to consider, but they do not guarantee that Wally will make a profit.
Step-by-step explanation: