Answer:
I'm not completely sure but i think it is true
Explanation:
I already learned this so... Hope this helps
The answer would be:
C. The Republican platform in 1845 was anti-slavery and the Democratic platform was pro-slavery.
Railroads not only led to an increase in the ability to transport raw materials, but they also led to an "<span>B. increase in the demand for raw materials," since it provided for far more opportunities to use such materials all over the country. </span>