Consider this student response to "Machu Picchu: A City in the Sky.” A 3-column table with 1 row. Column 1 is labeled Text with entry "Machu Picchu is part of the history of our world. It is important because it shows what an ancient civilization was like. The United Nations decided to protect the city. In 1983, the U N made the city a World Heritage site." Column 2 is labeled Machu Picchu shows what an ancient civilization was like. The United Nations decided to protect Machu Picchu. The United Nations made Machu Picchu a World Heritage site in 1983. Column 3 is labeled Paraphrase with entry Machu Picchu is an example of an ancient civilization, and it can teach people about history."

Which sentence best completes the paraphrase of the passage?

The United Nations considers Machu Picchu a special treasure, so it is listed on a World Heritage website.
Because of Machu Picchu, the United Nations has learned about other heritages in the world.
To protect Machu Picchu, the United Nations named it a World Heritage site in 1983.
The United Nations was formed to protect the heritage of civilizations like Machu Picchu.