Answer:
A. Airplane
Explanation:
Around 1918, Air delivery, became the new mode of transportation for mail, as it rendered railroad services unnecessary. During this period, the Post Office moved on the airplane bandwagon early, there by, offering air mail service in the early 1900s.
Hence, the 1900's technological invention which allowed the U.S. postal service to deliver the mail considerably faster than previous methods is AIRPLANE.
<span>experimental design.!!!!!!!!!</span>
The government supported the railroads because they transported people and goods faster.
I don’t remember exactly but I remember from history class that cuneiform was mostly tabs made out of clay or materials used to keep government records and tragic events that happened (such as wars or when tribes got broken up) for early civilizations; I hope this answer helps a little !
Im pretty sure the only answer it could be is C.
