Which of the following statements is (are) true?

a)	Organizations that are more efficient due to cost management have a competitive advantage.

b)	Organizations are increasing looking to managers to increase clinical quality and customer service while reducing cost.

c)	An advantage of the growth in fixed costs is that they can be spread over a larger volume of output.

d)	Sunk cost is a cost you cannot change.

e)	In the long run, all costs are variable.

f)	Managing costs requires an understanding of opportunity costs and triggers that change costs.

g)	All of the above.

h)	None of the above.