How many people were killed in the fire？（）

A．Tile woman’s request is rejected by the man.
B．The woman is too old to study in college.
C．The woman has to take a test to be admitted.
D．The woman is welcome to study there.

A．advertising improved the product quality
B．advertising helped expand the goods distribution area
C．the change of American economy was necessary
D．producing and selling goods locally was the primary form of American economy