Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. When she began her study, the frog population was estimated at 1,200. Which function represents the frog population after x years? O f(x) = 1,200(1.03)* O f(x) = 1,200(0.03)* O (x) = 1,200(0.97)* O f(x) = 1,200(0.97)x ​