Which one of the following can be the topic sentence of this paragraph?
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You can take a bus, ride in a car, or ride a bike. The first kind of transportation is the ever popular bus. Buses can be cheaper than driving. Buses are also good for the environment because it’s like a big car pool. Cars can be a fantastic way of getting to school. They are private, so you don’t have to worry about a person you despise sitting next to you. A bike is the least expensive of all. Bike riding gives you the exercise you need to start the day actively. It is also good for the air pollution prevention. All these transportation can be a great way to get to school or home from school. Everyone is free to choose whichever method suits them.