Refer to the information provided in Table 8.3 below to answer the question(s) that follow.
 Table 8.3Refer to Table 8.3. What is the total cost of producing zero units of output?

A bank's revenue comes from all of the following EXCEPT

A) interest earned on vault cash. B) fees for services provided. C) interest on loans. D) interest on securities.

Assuming prices and wages are fully flexible, the aggregate supply curve will be:

A. upward sloping, but not vertical. B. vertical. C. horizontal. D. downward sloping.