Considering the supply side of a market for a good, if a firms supply curve were vertical, then:
A) the law of supply holds, and quantity supplied is completely insensitive to changes in price
B) the law of supply holds, and quantity supplied is highly sensitive to changes in price
C) the law of supply fails to hold, and quantity supplied is completely insensitive to changes in price
D) the law of supply fails to hold, and quantity supplied is highly sensitive to changes in price
E) none of the above