Which function has a horizontal asymptote at y is equal to 3 ?
A
f of x is equal to the fraction with numerator 3 x to the 4th power minus x cubed plus x plus 5 and denominator x to the 5th power minus 4B
f of x is equal to the fraction with numerator 15 x to the 4th power minus x squared plus 9 and denominator 5 x cubed minus 4C
f of x is equal to the fraction with numerator 6 x squared minus x plus 4 and denominator 2 x squared minus 1D
f of x is equal to the fraction with numerator 3 x squared plus 5 x plus 18 and denominator 2 x squared plus 6