Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to ride a bus [title] Figure out how to get where you are going. [step] Contact your local bus or transit system and get help from a " route planner " or buy a map book. Make sure your map book is current. <sep> (A) Be sure you see the bus in case you have forgotten where it is going or running on a route that is not your usual route or the bus is changing direction. [title] Coordinate ride mileage, class, and fare. (B) But remember, schedules can change on very short notice or as a consequence of things the driver can't control, like really bad traffic. Most systems also have on-line informational resources. (C) Getting information on bus routes is a must, as geography is very important. [title] Buy a pass with your driver's name, address, phone number, and other information. (D) Many bus routes feature routes which you cannot see if you stay in a shaded area, like between a bus and public buildings. Websites, such as google maps, times-share, tripadvisor, etc.
A:
B