The supreme court case of prigg v. pennsylvania concerned the issue of

The Supreme Court case Prigg v. Pennsylvania (1842) involved in the kidnapping of fugitive slaves.  "Popular sovereignty" was the belief that settlers to a territory should decide for themselves whether or not to permit slavery. 1842 - A slave had escaped from Maryland to Pennsylvania, where a federal agent captured him and returned him to his owner. 

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

6 or 2

explanation:

hope this you

but i think its 6