What effect does Frost's use of figurative language have on the overall meaning of this excerpt?

There where it is we do not need the wall:
He is all pine and I am apple orchard.
My apple trees will never get across
And eat the cones under his pines, I tell him.
He only says, "Good fences make good neighbours."

A. The use of personification to bring the wall to life emphasizes that a larger wall is needed.

B. The use of personification to show the grazing apple trees emphasizes the necessity of the wall.

C. The metaphor comparing apple trees to pine trees emphasizes that the neighbors have different opinions.

D. The metaphor comparing apple trees to grazing animals emphasizes that the wall is unnecessary.