Which of the following fears did some americans have about acquiring new territory in the mexican cession? new slave states would the south gain power in congress. the relationship between the united states and mexico would never recover. another war would break out between the united states and mexico. the united states had grown too large to govern effectively.

d. china

good luck

d is the best choice

i actually have a suggestion instead of an answer, how about next time instead of spending the time to time up the question you take that time and try to figure something out for yourself, do you understand?

explanation:

leave a 5 star and a and brainliest answer if you understand, hope this betters you day, or not i don't really care either way. xd