What is the net effect on a firm's working capital if a new project requires: $34,422 increase in inventory, $47,424 increase in accounts receivable, $35,000.00 increase in machinery, and a $44,371 increase in accounts payable

C) Marginal utility is less than zero.

Explanation:

Marginal utility is less than zero because Freddy has reached a point in which one additional corn dog does not provide any extra benefit, and on the contrary, actually decreases his well-being by making him feel sick.

Not only he does not need any more corn dogs, but he would incurr a personal cost if he ate one more.