A. radio
The radio became popular in the 1920’s due to Americans finding a new interest in music.
Answer:
Harran Derrick was a Rancher and he believed that the railroad was cheating him by always passing the point of destination for his goods and him having to pay extra money to get the goods to the final destination.
He also believed that the railroads were taking the land that he spent time to cultivate and using it for their construction purposes which was allowed due to the importance of the development of more rail roads and the rail system in general.
He helped unite the midwest indians
<u><em>The Mir Space Station was in orbit for an astonishing 15 years, being the first modular space station public ally known!</em></u>
The Mir Station is no longer in orbit and was destroyed upon forced reentry by the Russians in an attempt to get rid of it, so it is NOT A.
Does the word "Mir" sound American to you? Well I certainly hope not, because it isn't, so it is NOT C.
If it isn't A, and it isn't C, it can't be all of the above, so it is NOT D.
So the answer is B by process of elimination!