Read this excerpt from "Mending Wall," by Robert Frost: Something there is that doesn't love a wall, That sends the frozen-ground-swell under it, And spills the upper boulders in the sun, And makes gaps even two can pass abreast. The work of hunters is another thing: I have come after them and made repair Where they have left not one stone on a stone, But they would have the rabbit out of hiding, To please the yelping dogs.

What is the speaker of this poem doing?

○ A. hunting
○ B. inspecting a stone wall
○ C. building a fence
○ D. arguing with his neighbor