Which of the following statements is false:

a)	Managers normally do not make estimates of variability to make comparisons of value.

b)	Joint ventures can make diversification more risky.

c)	Managers will take some risks because of inadequate payoffs.

d)	Managers do not hedge some risks through diversification.

e)	Scenario and sensitivity analysis while insightful do not help managers avoid bad decisions.

f)	All of the above

g)	None of the above.