The was completed in 1869, was the first that connected the country from west to east, and was finished in Promontory, Utah: * 4 points
a. telegraph line
b. northern canal
c. powered air flight
d. transcontinental railroad

the question is asking about the things that may have affected and what they effects had on the spanish conquest and settlement of america

explanation:

the answer is d trust me

answer; /// slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final