Microsoft's Marginal Cost of the 100th Copy of Microsoft Windows

Multiple Choice

Microsoft's marginal cost of the 100th copy of Microsoft Windows 10 is

A) the maximum amount that someone is willing to pay for the 100th copy of Windows 10.
B) equal to the marginal benefit from the 100th copy of Windows 10.
C) the opportunity cost of producing the 100th copy of Windows 10.
D) the maximum amount that someone is willing to pay Microsoft to obtain the code that supports Windows 10.
E) greater than the marginal benefit from the 100th copy of Windows 10.