article: Many people like to travel during their vacations . Some people travel in tour groups because they think it is safe and cheap. A tour guide takes care of the group and makes sure the group can see a lot of interesting and beautiful _ . Other people like traveling alone or with friends. If you travel by yourself, you are free to see what you want to see.
  People travel for many reasons. Some people travel to learn more about other countries' people, culture, food and languages. Some people travel for adventure . They want to do some different things, such as skiing, bungee jumping  and mountain climbing. Other people like to shop when they travel. They look for new things or cheap ones.
  There are different ways to travel. Some people take trains, boats or buses, some fly, and others drive cars. Some people like to travel slowly and spend a long time in each place, while others like to take quick tours and visit more places in a short time.
question: According to the passage, people travel for  _  .
options: adventure learning more about another country Shopping all of the above