Answer:The answer is C i.e. Factor
Step-by-step explanation:
A rational expression is an expression containing fractions in which both numerator and denominator are polynomials
So to simplify a rational expression we have to make the factor of it
For example: [tex]\frac{x^2-9}{x^3-27}[/tex]
When we simplify it
we make factors of [tex]x^2-9[/tex] and [tex]x^3-27[/tex]
=[tex]\frac{(x+3)(x-3)}{(x-3)(x^2+9+3x)}[/tex]
=[tex]\frac{x+3}{x^2+9+3x}[/tex]
which is a simplified expression
