D) It's great for watering vegetable plants and flowers around your house. I use it to fill my fish tanks, even to wash the car if you want to
They use it to expose and critize.
The figurative meaning of the phrase “set the wall between us” in the poem “Mending Wall” is to build a barrier between people. This figurative is taken from the "Mending Wall" poem by Robert Frost which specifically made to criticize the customs of setting a barrier between people. This part shows the poet messages.