Amanda buys a ruby for $330 for which she was willing to pay $340. The minimum acceptable price to the seller, Tony, was $190. Amanda experiences

A. a producer surplus for $10, and Tony experiences a consumer surplus of $190

B. a consumer surplus of $10, and Tony experiences a producer surplus of $140

C. a producer surplus of $200, and Tony experiences a consumer surplus of $10

D. a consumer surplus of $670, and Tony experiences a producer surplus of $200