Suppose that the tires of a certain tire manufacturer are discovered to be defective. Other things the same, this news would cause
a) the demand for this company's stock to decrease, so the price would rise.
b)the demand for this company's stock to decrease, so the price would fall.
c) the supply of this company's stock to decrease, so the price would fall.
d) the supply of this company's stock to decrease, so the price would rise.