$\backslash$table$[[$Anne the Cook,Cook Full Time,Cook and Wait on Customers$],[$Meals Cooked per Day,$20,4],[$Customers Waited on per Day,$0,4],[$Sam the Waiter,Wait Full Time,Cook and Wait on Customers$],[$Meals Cooked per Day,$0,4],[$Customers Waited on per Day,$20,4]]$

According to Exhibit $1-2,$ if Sam did all the cooking as well as waited on tables, how many customers would he be able to serve per day?

$4$

between $2$ and $20$

$0$

$20$

$5$

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