A company sells bikes that are light and fast. The revenue earned over a period of x years can be represented by the function, S(x) = 100x^3 + 6x^2 + 97x + 215. The cost of manufacturing the bikes can be represented by the function, C(x) = 88x + 215.
Which function, P(x), describes the profit earned from the sales of the bikes over a period of x years?
A. P(x) = 100x3 + 6x2 + 9x
B. P(x) = 100x2 + 6x + 9
C. P(x) = 100x3 - 82x2 +97x
D. P(x) = 100x3 + 6x2 + 185x + 430