So the limit, let me do this for the different graphs. So for graph A, the limit as x approaches one from the left, that looks like it's unbounded in the positive direction, that equals infinity. And the limit as x approaches one from the right, well, that looks like it's going to negative infinity. That equals negative infinity. And since these are going in two different directions, you wouldn't be able to say that the limit as x approaches one from both directions is equal to infinity, so I would rule this one out. Now let's look at choice B. What's the limit as x approaches one from the left?