How the development of the telegraph contributed to
westward expansion?

Explanation:

The invention of the telegraph system helped America expand westward because it allowed people who were far away from one another to communicate instantaneously. ... The telegraph made this possible. The telegraph allowed the railroad stations in far apart places to communicate easily.

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.

d. china

good luck

d is the best choice