You must research opposing views in order to make your case stronger as you disprove opposing views.
Because if it was written after the time of the event, the source may be inaccurate. Also, if it was written in a different place to the event the source is taking about, that place could be particularly biased for or against that event.
It would be it, because it is the bumper sticker.
The boy finds the girl and follows them
Answer:
Ob
Explanation: have a great day lad