Context: we 're in vang vieng at the moment . it 's surrounded by lush mountains . we rented a couple o huge rubber rings today to do " tubing " .

Question: Why did they want to go tubing ?
Options:
0. Because they wanted to rent something .
1. Because they like rubber .
2. None of the above choices .
3. Because they thought it would be a fun thing to do .
Answer: 3