Write the next sentence in the following story.

How to ride your bike to school safely
Find a safe route to school.
Use google maps and find two bicycle friendly routes to your school. One should be the one you take most of the time and the second one should be a backup.

Available choices:
(A). If you are not sure which route to take, here's an example : Go you school street left. Take the turn from keep will at street corner.;
(B). If you can't find a safe route, at least make sure it is not dangerous. Many bike smart places are equipped with safety equipment that protect against bike injuries, particularly among students.;
(C). If you already know a route to your school and it is possible to travel it on a bike, use it. ( you should still find an alternate route in case the first route becomes obstructed or impassable.;
(D). You may want to consider using a combination of the two. Many schools will block you if you use these routes too frequently.;. The answer should be
(C).