Out of the three given choices, the only man made structure visible from the moon is none of the above. The only reason why the Great Wall of China was thought or believed to be visible from the moon appeared in a letter written by William Stukeley in 1754. His later stated that the Great Wall of China which has 130 km in length “is only exceeded by the Chinese Wall, which makes a considerable figure upon the terrestrial globe, and may be discerned at the Moon”.
There were many claims about the Great Wall of China being visible from the moon, but those were debunked many times as lunar astronauts never claimed to have seen the Wall from the moon.