The Europeans were already familiar with most diseases (they themselves brought some diseases to the Americas) and so they developed immunity to those disease, but the Natives were unfamiliar with those diseases so their systems were still weak fighting those diseases off.
The answer is B. 1869
The continental railroad was completed May 10, 1869, and the First Transcontinental Railroad in America was built in the 1860s.
A is poverty b is political reforms
Answer:
" at first they were denied the right to fight by a prejudiced public and a reluctant government. Even after they eventually entered the Union ranks, black soldiers continued to struggle for equal treatment. Placed in racially segregated infantry, artillery, and cavalry regiments, these troops were almost always led by white officers."
Explanation:
source: https://www.crf-usa.org/black-history-month/black-troops-in-union-blue
Central America is benefiting from current International aid programs, 'cause U.S. Government provides financial help and food through multiple programs to them but Countries such as Venezuela aren't receiving any aid from the US 'cause of it's abundance of natural resources
Hope this helps!