6. The equation c = 523, 430(1.193)t models United States copper production in pounds from 1987 – 1992. Which statement best interprets the coefficient and base of this equation? A) The copper production in 1987 was 523, 430 pounds, and it had been increasing at a rate of 1.93% per year during that period.
B) The copper production in 1987 was 523,430 pounds, and it had been increasing at a rate of 19.3% per year during that period.
C) The copper production increased by a factor of 523,430x1.193 pounds per year during that period.
D) The copper production at the beginning of 1987 was at 1.193 pounds, and it had been increasing by a factor of 523,430 pounds per year during that period.