The answer is B. Development of railroad systems.
C they were fought on confederate soil
Answer:
A. explores sent by jefferson to find a water route to the pacific.
Explanation:
Eliminate B and C immediately. The word integrated means to combine or bring things together, which makes the answer choice D wrong. The best choice is A. I hope this helps.
Answer:
I think its B or c not really sure sorry if i dint help
Explanation:
