187 A dissolved oxygen concentration of 8.0 ppm represents __________.

A. 8 lbs of oxygen dissolved in 1,000,000 tons of water
B. 8 tons of oxygen dissolved in 1,000,000 pounds of water
C. 8 ounces of oxygen dissolved in 1,000,000 ounces of water
D. 80 ounces of oxygen dissolved in 100,000 ounces of water