PLEASE!! Despite efforts to douse the fire with water, the landfill continued to burn. Experts were brought in to help with the situation. Readings of the smoke coming from the landfill determined that burning coal was indeed producing some of the smoke. The warning came too late, though. Local firefighters poured thousands of gallons of water into the landfill, but within a few days the fire would always flare up again. The fire had already started burning into the Buck Mountain anthracite coal seam lying underneath Centralia, and no one could stop it. Between 1962 and 1978, state and federal governments spent $3.3 million on unsuccessful efforts to control the fire.

What is the positive connotation of the phrase black gold rush in paragraph 2?
A. Money will be made.
B. People will leave quickly.
C. Fuels will be black and gold.
D. Visitors will come to see fires.