You bought some real estate six years ago for $$25,000,$ and you are thinking of using this land for the construction of a new warehouse as part of a production expansion project. You include the $$25,000$ purchase cost of the land as an initial cost in the capital budgeting process. By doing so$,$ you are making the mistake of in the decision$-$making process.

A$)$ including erosion costs

B$)$ Including opportunity costs

C$)$ including sunk costs

D$)$ including net working capital changes

E$)$ including financing costs