Answer: •The author’s choice of words presents a contrast between the buildings, greenery, and other things Klaus had seen earlier swallowed up by the sour-smelling cement and the snarling barbed wire.
• the references to the wall becoming an “oppressor” and it association with fear, suspicion, and the government also help to visualize the setting.
• the author describes East Berlin as being “colorless” compared to the West Germany, in the glimpse the reader is given what Inge sees through the hole in the wall.
Explanation: PLATO