What made the dred scott case a significant one in american history?

a. the case challenged the legality of importing enslaved people from africa or the caribbean and eventually ended the slave trade in america.

b. the case led to the election of abraham lincoln, who was one of the lawyers who represented dred scott before the supreme court.

c. the case forced the supreme court to accept that the intent of the framers of the constitution is irrelevant to the implementation of a law in the present day.

d. the case resulted in the supreme court denying that african americans could be citizens and added to the sectional tensions that eventually led to the civil war.

answer im timed

Ascientist successfully predicts the outcome of an experiment. you watch carefully and know he didn't cheat. the scientist's success shows that: a) the scientist knows absolute truth about this experiment; success is not possible unless you know the truthb) the scientist was just lucky; no one ever knows what's going on, so successful predictions require luckc) the scientist may know the truth, or at least know something that is close to the truth, or the scientist may have gotten lucky this time; you can't be absolutely sured) the scientist really was cheating, even though you didn't see the cheating; no one can get things right, except by cheatinge) the scientist spent the night at a particular hotel chain and go a free breakfast, giving the scientist the ability to do amazing things