Suppose the government decides that every family should own its own home. To bring this about, the government decides to subsidize the home-construction industry by giving the home-construction companies $10,000 for every house that they build. As a result of this,

a.
place more oil on the market this year, thus shifting the present supply curve of oil rightward.

b.
hold some oil off the market this year, thus shifting the present supply curve of oil leftward

c.
place more oil on the market this year, thus increasing the quantity supplied of oil at lower but not higher prices

d.
hold some oil off the market this year, thus decreasing the quantity supplied of oil at lower but not higher prices