Suppose There Are Ten People Playing Cards in a Room

Multiple Choice

Suppose there are ten people playing cards in a room.One of them wants to smoke a cigar;nine of them dislike the smell of cigar smoke.The smoker values the privilege of smoking at $5,and each of the other nine occupants of the room would be willing to pay fifty cents for clean air in the room.The rules governing use of the room state that smoking is not allowed unless everyone agrees to allow smoking.
Refer to the information given above.Declaring the card room a non-smoking area with no opportunity to negotiate would:

A) decrease total economic surplus.
B) increase total economic surplus.
C) leave total economic surplus unchanged,but redistribute benefits.
D) efficiently solve the externality problem.