C
Step-by-step explanation:
Asymptote is basically a line that the graph approaches but NEVER cuts/crosses.
Remember, x = a where a is a constant is an equation of a vertical line and x = b, where b is a constant, is the equation of a horizontal line.
Looking at the graph, we can see that the curve doesn't cross an imaginary line at x = 0, this is a vertical asymptote.Also, we can see that the curve doesn't cross an imaginary line at y = -2, this is a horizontal asymptote.Looking at the answer choices, the choice C is right.