In Which of the Following Ways Do Advertising and Other

Multiple Choice

In which of the following ways do advertising and other selling costs affect a firm's cost curves?
i.Advertising expenditures increase total fixed costs.
ii.Selling costs increase total fixed costs.
iii.Advertising and other selling costs per unit of output decrease as output increases.

A) i only
B) i and ii
C) iii only
D) i and iii
E) i, ii, and iii