A - he was a governor and general who declared himself dictator for life.
Julius Casear was the self proclaimed dictator of room from 47-44 B.C.E before he was murdered on the steps of the Senate.
The answer that is not true is A: "Scott could only sue in state courts."
Whether Dred Scott, as a slave, had any legal right to sue in court was a matter that applied whether talking about state or federal courts. When Scott's suit was rejected by a state of Missouri court, Scott and his supporters managed to bring the case into a federal court, and it went all the way to the Supreme Court. Though the Supreme Court at the time ruled that Scott had no right to bring the suit because he was a slave and not a citizen (point D above), the case gave Chief Justice Roger Taney opportunity to make further statements regarding the slavery issue, including points B and C in your list above.
"secular" basically means worldly--anything that isn't spiritually or religiously inclined. examples of "secularism" might be self-indulgence of alcohol or erotic material, or just enjoying certain human pleasures that have no religious reward, such as gourmet food.
humanism basically put humans above all else. they set aside the biblical stories that had religious value and started focusing on more mundane issues. they pointed out the goodness and usefulness of people rather than relying on religion. in this way, humanism promoted secularism because it was promoting humans themselves. it turned away from the strong traditional customs and encouraged humans to problem-solve on their own. it encouraged less reliance on religion and highlighted the abilities of people.
as a disclaimer, i'd like to add that this is just historical context i've gathered from my art history courses. further research might grant you more thorough observations!!
