Every morning at 9:30am, the manager of a fast-food restaurant determines how many hamburgers to pre-make so they are ready to be immediately given to customers at lunchtime. If not enough are pre-made, customers will have to wait a long time in line, and might go to the competing fast-food restaurant next door instead. If too many are pre-made, some will spoil before they can be used.

The manager has come up with the following incorrect idea:

GIVEN the past fraction of days that hamburgers were ordered at lunch, the past overall distributions of (a) arrival rates of customers, (b) the time it takes to give a customer a pre-made hamburger, (c) the time it takes to make and give the customer a newly-made hamburger, (d) customers leaving because of lines, and (e) hamburger spoilage, USE a simulation model TO find the best tradeoff between the expected number of customers served each day and the cost of spoiled hamburgers.

Select all of the statements below that shows a reason why the manager's idea is wrong.

a.Simulation models cant be used to evaluate tradeoffs

b.The data doesn't include attributes of days(holidays ,etc).

c.The simulation model doesn't account for random variation.

d.The simulation model doesn't account for seasonality.