The correct answer is C) good neighbors.
For the speaker of “Mending Wall” by Robert Frost, the wall symbolizes "good neighbors."
Indeed, there is a phrase in the poem that says "good fences make good neighborhoods." But the speaker disagrees with his neighbor about the fence in that it represents a physical separation that does not allow the two to know each other and become friends.
American poet Robert Frost wrote the poem "Mending Wall" that is part of the book "North of Boston," published in 1914.
