I would say to show that your source is credible!
Good Day!
Answer:
C) The teaching of evolution in public schools.
Explanation:
<span>Kings at the time usually didn't have heirs to the throne, because of this by killing the king you bring confusion to the country. No one knows what to do and everyone wants to be the new leader. So the king dying was a great chance for Alexander to take over Persia.</span>
<span>It confirmed that students at school had freedom of speech.
The case revolves around the constituinal rights that held by the public schools' students in united states.
The case ruled that students are granted to exercise the right to form a protest/voice up their opinion as long as it's done peacfully.</span>