Question $14(1$ point$)$

Which function has an oblique asymptote?

a$)f(x)=\frac{x^2-2x1}{x-1}$

b$)f(x)=\frac{x-3}{x^2-4x3}$

c$)f(x)=\frac{x^{3}x2}{x^2-3x7}$

d$)f(x)=\frac{2x^2-x}{3x^{2}1}$