The Wii is a wildly popular home video game console released by Nintendo. The Wii system was first available in the US in November, 2006 and has sold more than 30 million units as of August 2010. The Wii retails for $199. Suppose Ahmed is willing to pay $230, Lana is willing to pay $175, and Bodie is willing to pay $300 for a Wii. What is the value of Lana's consumer surplus?
选项：

A: No consumer surplus is generated because Lana will not buy the Wii.
B: $249
C: $225
D: $24