Answer:
Option A
Step-by-step explanation:
Any number that can be written in the form of a fraction [tex](\frac{p}{q})[/tex] will be a rational number.
From the given options,
Option (A)
Given expression [tex]\sqrt{\frac{x^2+2x-5}{2x^2-3x+4}}[/tex] can't be written in the form of a fraction [tex](\frac{p}{q})[/tex] (Without square root).
Therefore, given function is not a rational function.
Rest all options represent a rational function.
Option A will be the answer.
