Which of these was an immediate result of the "denmark vesey plot" in the early 1800s? a) slaves were given more freedoms b) more restrictions were placed on slaves c) the supreme court heard a case involving slavery d) nat turner's plot was soon revealed and put down

I believe the answer is B)more restrictions were placed on slaves  
In "Denmark Vesey plot" , a plot created by the slaves to overtake a city in one night  was spoiled by a fellow slave that snitched their plan to his owner who reported it to local authorities.
After this incident, many of those slaves were hang and several restrictions were made in order to prevent their defiance.