Select the correct match.
| Column I | Column II | ||
|---|---|---|---|
| A | f(x) is a polynomial |
- | As (x – 2), (x – 4), x are polynomials |
| B | f(x) is an equation |
- | As it can be written as ax2 + bx + c |
| C | f(x) is a rational number |
- | As it is of the form  ,q ≠ 0 |
| D | f(x) is not a polynomial |
- | As the exponents of x are not whole numbers. |
is x exponent??