The answer is B: the function approaches positive infinity as x approaches -2.
In fact, when you read a limit like
[tex] \displaystyle\lim_{x \to c} f(x) = k [/tex]
You mean that, if you approeach the point c on the x axis, the function approaches the value k on the y axis.
In this case, k in positive infinity, so we're saying that, when you approach -2 along the x axis, the function "explodes" to positive infinity, which means that x = -2 is a vertical asymptote for the function.
