The values of x for which the function\(f\left( x \right) = \frac{{{x^2} - 3x - 4}}{{{x^2} + 3x - 4}}\)is NOT continuous are

The values of x for which the function\(f\left( x \right) = \frac{{{x^

1.	The values of x for which the function\(f\left( x \right) = \frac{{{x^2} - 3x - 4}}{{{x^2} + 3x - 4}}\)is NOT continuous are
A.	4 and -1
B.	4 and 1
C.	-4 and 1
D.	-4 and -1
Answer» D. -4 and -1