In order to promote off-season business, Mt. Dunmore Lodge made the "Welcome Back" offer to their winter guests: guests who rent a room for atleast a week during ski season can come back during the summer and get 25% off the standard summer price of any room they rent. After the summer passed, the owners of the lodge determined that the majority of their guests had taken advantage of the offer and paid the reduced rates. However, they were surprised to find they still managed to rent more rooms at full price than they did at the discount rate.

Which of the following reason may resolve the discrepancy in the above argument?

A) Most of the guests who stayed at Mt. Dunnmore Lodge during the winter didn't stay for a full week
B) Those guests taking advantage of the discount were more likely to bring their families with them then were those guests who were paying full price.
C) Some of the guests who received the "Welcome Back" discount also received a 10% rate reduction
D) In order to pay for the construction of a new gymnasium and a new pool, the owners if the lodge raised their summer prices considerably
E) On average, guests who took advantage of the offer spent more money at the hotel on additional goods and services than guests who paid full price for their rooms

OA : B