Rebecca Is Participating in a Dutch Auction for an Antique

Rebecca is participating in a Dutch auction for an antique necklace. The total number of bidders in this auction is ten. Rebecca values the necklace at $45,000, while all the other bidders value it below $45,000.
-Refer to the scenario above. If Rebecca wins the auction, she will earn a surplus of ________.

A) $1,000
B) $4,500
C) $5,000
D) $45,000