What was the “christiana riot”?
a) a response to the personal liberties laws
b) one example of the successful enforcement of the fugitive slave act
c) one example of a group of free blacks who mobilized to protect fugitive slaves
d) the response of northern whites to the fugitive slave act
, which of these are

C) one example of a group of free blacks who mobilized to protect fugitive slaves.

Explanation:

The Christiana Riot happened when and expedition of white people tried to re-capture some escaped slaves in the city of Christiana, Pennsylvania, which was a ressitance of free black men against the re-capture of 4 blacks that escaped slavery and after the congress passed a law where all escaped slaves should be returned to their owner and was a violent series of ressistance and eneded up on almost 40 people wounded or assasinated.

the right answer is d