Your answer would be 1 to me because it is the only one that makes sense
Answer:
The building of the transcontinental railroad opened up the American West to more rapid development. With the completion of the track, the travel time for making the 3,000-mile journey across the United States was cut from a matter of months to under a week.
Explanation:
Penicillin was so important because it was proven to reduce the amounts of deaths amputations and surgeries during world war1
Answer:
Explanation:
Cut taxes defense spendings, and more was added when Reagan became President thus he also added military power giving them more access and control.