Answer:
B. whether a group of rebel slaves should be returned to their captors.
Step-by-step explanation:
The Amistad case was about 53 Africans in 1839, who was originally from Sierra Leone and were illegally captured by the Portuguese as slaves but later sold to Spanish slave holders.
However, they later get to United States of America territory. And in the attempt to determine the fates of these Africans as slaves, their motion of whether to return them to their captors came up.
Hence, in this case, the correct answer is option B. "whether a group of rebel slaves should be returned to their captors."