A Piece of Iron Rests on Top of a Piece

Multiple Choice

A piece of iron rests on top of a piece of wood floating in a bathtub.If the iron is removed from the wood,and kept out of the water,what happens to the water level in the tub?

A) It goes up.
B) It goes down.
C) It does not change.
D) It is impossible to determine from the information given.