What is the horizontal asymptote of f(x)=4x2−12x2+3f(x) = \frac{4x^2 - 1}{2x^2 + 3}f(x)=2x2+34x2−1?
y=2y = 2y=2
y=4y = 4y=4
y=0y = 0y=0
No horizontal asymptote