Context: Our journey took us to a region called the Dragon 's Spine , located in a high and rugged mountain range . Long ago , the dominant Han Chinese drove several minority ethnic groups out of the surrounding low lands . These groups then built their communities in the mountains , transforming the steep hillsides into terraces so that they could grow rice and other crops .
Question: What did they do on their tour ?
Option 0: Learned how rice and crops are grown
Option 1: Walked up the hills in the mountains
Option 2: None of the above choices .
Option 3: Learned the history of the Areas they saw
Answer: 3