The following costs are relevant to the decision situation cited except:

Multiple Choice

the cost to enhance an airline's beverage service, in a decision to expand existing airline service to either Salt Lake City or Phoenix.

the commissions that could be earned by a salesperson, in a decision that involves salesperson compensation methods $($i$.$e$.,$ commissions or flat

monthly salaries$).$

the long$-$term salary costs demanded by Joe Torrez $($a superstar$)$ and Rip Moran $($an average player$)$ in baseball contract negotiations, in a decision that

determines the amounts by which ticket prices must be raised.

the remodeling cost of existing office space, in a firm's decision to stay at its current location or move to a new building.

the cost of hiring a full$-$time staff attorney, in a decision to establish an in$-$house legal department or retain the services of a prominent law firm.