Books and Coffee

The owners of a book store and a nearby coffee shop have decided to combine
their businesses. Both owners believe that this merger will increase the number
of customers and therefore the gross revenue, because customers who come for
one reason may also decide to purchase something else.

Which of the following, if true, most weakens the owners' conclusion that a
merger will increase revenue?

(A) Books and drinks can both be considered impulse purchases; often, they are
purchased by customers without forethought.

(B) Profit margins at a coffee shop are generally significantly higher than profit
margins at a book store.

(C) People who are able to read the first chapter of a book before buying are
more likely to decide to buy the book.

(D) A large majority of the book store's current customer base already frequents
the coffee shop.

(E) A combination book store and coffee shop that opened in a neighboring
city last year has already earned higher than expected profits.