What was the "Christiana Riot"?
A) a response to the personal liberties law
B) the response of northern whites to the Fugitive Slave Act
C) one example of a group of free blacks who mobilized to protect fugitive slaves
D) one example of the successful enforcement of the Fugitive Slave Act
Please just give me the letter answer, not an explanation that has nothing to do with the actual options given. So far, no one has actually answered this question. An explanation isn't needed with multiple choice.