10 класс. Английский язык. ЛЕКСИКА. Real life vocabulary

I am larger than a car but I also travel on streets and highways. I am slower than a train. I have a lot of seats for people to sit on and, usually, two people sit together on each seat. I make many stops throughout each day as I pick up people who are patiently waiting at specific stops. What am I? ..........

• A bus
• A boat
• An airplane
• A train