Answer:
How did this lead to the Civil War? The north was shocked, because the highest court in America had declared it illegal for Congress to abolish slavery. They also felt that they should not listen to laws that were made solely by southern slaveholding citizens.
He did it by building numerous rafts during the night and crossing the hydaspes during the night, all while leaving 5000 soldiers behind during midnight. This enabled him to get a tactical advantage over Porus and eventually helped him win the war.
C. Hellenism was brought on by Alexander uniting these three cultures.
Martin Luthor wrote this to the Archbishop of Mainz & Magdeburg objecting the selling of indulgences he was just trying to question the nature of the church practices at the time rather than confronting the entire institution.
Hope this helps you
The answer for #6 is...... C