The following text is adapted from George Orwell's 1949 novel 1984. Airstrip One, formerly known as England, is a province of the superstate Oceania. The Ministry of Truth contained, it was said, three thousand rooms above ground level, and corresponding ramifications below. Scattered about London there were just three other buildings of similar appearance and size. So completely did they dwarf the surrounding architecture that from the roof of Victory Mansions you could see all four of them simultaneously. It was an enormous pyramidal structure of glittering white concrete, soaring up, terrace after terrace, 300 metres into the air. Which choice best states the main purpose of the text?