Which of these to further the westward expansion in the united states after 1865?
a) california gold rush
b) abolition of slavery
c) transcontinental railroad
d) lewis and clark expedition

answer: it b

explanation:

cuz l   said so

the navigation act prevented the colonies from exporting to countries other than britain and it prevented the importation of goods by other countries as well. so i believe the correct answer is d. other nations could not deliver goods to the colonies.

hope this .

religion played a major role in the american revolution by offering a moral sanction for opposition to the british--an assurance to the average american that revolution was justified in the sight of god. the revolution strengthened millennialist strains in american.

increase in population