Yolunda Finds an Antique Typewriter That Would Look Perfect in Her

Yolunda finds an antique typewriter that would look perfect in her office, but the price tag is missing. She is willing to buy it as long as it's not more than $200. The store owner informs Yolunda that the price is $175. Yolunda buys the typewriter, and therefore achieved a consumer surplus of

A) $200 because that is what she was willing to pay.
B) $175, the price that she actually paid.
C) $25, the difference between what she was willing to pay and the price.
D) $0 because the typewriter was not discounted from the price the store owner quoted.