What effect does frost's use of figurative language have on the overall meaning of this excerpt? a. frost uses a metaphor to compare apple trees to grazing animals in order to show that the wall is unnecessary. b. frost uses personification to give the apple tree animal-like qualities to show that the wall is necessary. c. frost uses a metaphor to compare apple trees to pine trees to show that the neighbors feel differently about the wall. d. frost uses personification to give the wall human qualities to show that the neighbor is being stubborn.