f(x) = 7.3(0.98)^x The function shown models the annual soil erosion rate, in tons per acre per year, on US cropland x years since 1982. According to the model, which is the best interpretation of 7.3(0.98)^10 in this context? A) The number of acres of US cropland in 1982 B) The number of acres of US cropland in 1992 C) The annual soil erosion rate, in tons per acre per year, in 1982 D) The annual soil erosion rate, in tons per acre per year, in