Answer: c. Yes, because the marginal revenue from producing the additional shoe is greater than the marginal costs.
Explanation:
When making financial decisions, companies abide by the principle of Sunk Costs. This means that money that has already been spent, should not have any effect on future financial decisions. The $30 million that has been lost already will therefore not be considered.
The only figures now are the additional cost and revenue. The additional revenue is more than the additional cost so this shoe should be produced because it brings in a profit of $0.01.