Oil refiners can refine a barrel of petroleum so that it yields either more home heating oil or more diesel fuel. If the price of diesel fuel falls, there is
A.
an increase in the supply of home heating oil.
B.
a decrease in the supply of home heating oil.
C.
an increase in the quantity of home heating oil supplied.
D.
a decrease in the quantity of home heating oil supplied.
E.
an increase in the demand for home heating oil.