Read the following article and answer the question. Article: Simon is a student in a middle school. He is very strong. He goes to No.6 Middle School on a bus. He's good at English. But he's often late for his English classes. His father is a doctor. He's big and tall. He works in a big hospital. His mother is a nurse. She's slim and pretty. They are in the same hospital. They all work hard. He loves his father and mother very much. His father and mother both go to work by bike. We can see bikes here and there. And China is a "country of bikes". Question: Why do we say China is a "country of bikes"? Answer:
Select from the following.
* Because we all go to school by bike.;
* Because everyone in China likes bikes.;
* Because bikes can make us strong.;
* Because there are many bikes in China, we can see bikes here and there.;
Because there are many bikes in China, we can see bikes here and there.