Suppose we compare the difference between the NPV of a financial model in which the means are entered for all input random variables and the NPV of a financial model in which the most likely values are entered for all input random variables. If we see a large difference between the NPV's, this illustrates:

	a.	the flaw of averages
	b.	errors in the model logic
	c.	the bias of the analyst
	d.	the effect of randomness
	e.	the value at risk (VaR)