How did the fugitive slave act affect the underground railroad?
a. it prevented it from functioning.
b. it prompted an expansion of its operations.
c. it made people afraid to shelter enslaved people.
d. it prompted a decrease in its operations.

C is not correct. B is. i just took the test

B - Prompted expansion

Explanation:

More abolitionists joined the cause to help African-Americans escape slavery and more African-Americans wanted to escape to the North and some even left the country to avoid being enslaved again under the Fugitive Slave Act.

hey.

the answer is. b) to protect migrating native american tribes .

and, c) to protect migrating native american tribes .

hope this , if it does, consider marking me brainiest! uwu