How did the role of women change in post war society ? ! Help hurry !

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

Whose plan centered on keeping the federal budget balanced, instituting tax cuts, and developing public works projects?

Which character are always present in all living organisms