If Harry Bartolini's Ford Dealership Sells Rosa Brown a New

If Harry Bartolini's Ford dealership sells Rosa Brown a new automobile for $30,000, economic analysis indicates that

A) both parties to the transaction will gain.
B) Mr. Bartolini will gain from the transaction, while Rosa Brown will lose.
C) Rosa Brown will gain from the transaction, while Mr. Bartolini will lose.
D) the well-being of both parties will be unchanged.