A fast-food company spends millions of dollars to develop and promote a new hamburger on its menu only to find that consumers won't buy it because they don't like the taste. From an economic perspective, the company should:

A - keep the hamburger on the menu because they've spent so much money and time developing and promoting the product.

B - spend more money to develop a more efficient way to cook the hamburger so it cooks in a shorter time.

C - pull the hamburger off the menu and treat the development and promotion expenditures as a sunk cost.

D - keep trying to sell the hamburger so that people who developed and promote it have a job with the company.