Kayla and Kevin are friends who go together to a used textbook seller who has two copies of the biology book that they both need for their class this semester. The cost to the seller of acquiring the books was $25 each and no other students will need this book. Kayla states that she is willing to pay $40 for the book, while Kevin says he is willing to pay $80. Which of the following describes the most likely conclusion to this scenario?
A. The seller will sell the books to both Kayla and Kevin for $80 each because Kevin's higher value exceeds Kayla's willingness to pay.
B. The seller will sell the books to both Kayla and Kevin for $40 each because if they tried to charge Kevin a higher price, Kayla would engage in arbitrage.
C. The seller will sell one book to Kayla for $40 and one book to Kevin for $80 because this market meets all three requirements for price discrimination.
D. The seller will sell the books to both Kayla and Kevin for $25 each because that is how much the seller paid for the books.
Answer: B
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