Two Types of Used Fender Stratocaster Guitars Are Available for Sale

Two types of used Fender Stratocaster guitars are available for sale: those made in the U.S.and those made in Mexico.It is impossible for the buyer to know which is which,but the seller knows.The value of a U.S.Stratocaster is $900 and the value of a Mexican Stratocaster is $400.The U.S.Stratocasters are 30% of Fender's production and the Mexican Stratocasters are 70% of production.No seller must sell a guitar for less than the guitar's value.
-Refer to the information above.If a buyer offers $550 and the offer is accepted,one can infer

A) the guitar was made in Mexico.
B) the guitar was made in the U.S.
C) the buyer got a good deal.
D) the seller got a bad deal.
E) nothing about where the guitar was made.