In the promotion "Buy two bottles of soda and get one free," when a customer purchases 4 bottles, they would actually be receiving 6 bottles total (4 purchased + 2 free).
However, the calculation of how much the company is forfeiting due to this transaction only considers the free bottles given. Since the promotion allows for one free bottle for every two purchased, the customer who buys four bottles would receive 2 bottles for free.
The total sales amount forfeited by the company would therefore be the price of the 2 free bottles:
2 free bottles x $2.00 per bottle = $4.00.
So, the correct response is that they would give away two free bottles, losing the sale amount of 2 x $2.00 = $4.00.