The Law of Supply States That, Other Things Remaining the Same

The law of supply states that, other things remaining the same,

A) if the price of a good increases, firms buy less of it.
B) demand increases when supply increases.
C) if the price of a good increases, the supply increases.
D) as people's income increases, the supply of goods increases.
E) if the price of a good increases, the quantity supplied increases.