What events most likely explain the following Wall Street Journal headline, "Cities Couldn't Give Away Their Trash; Now They Get Top Dollar"?

What events most likely explain the following Wall Street Journal headline, "Cities Couldn't Give Away Their Trash; Now They Get Top Dollar"?

           A) Quantity of trash supplied exceeded quantity demanded. As the demand for trash rose, the price collectors of trash were willing to pay rose.

           B)  Quantity of trash demanded exceeded quantity supplied. As the supply of trash rose, the price collectors of trash were willing to pay rose.

           C)  Supply of trash exceeded demand. As the demand for trash rose, the price collectors of trash were willing to pay rose.

           D) Demand for trash exceeded supply. As the supply of trash rose, the price collectors of trash were willing to pay rose