To whom is King comparing a flight's "unknown ground crew'? A. People like King himself who are the faces of the civil rights movement o

B. The unrecognized people who have worked hard to make the civil rights movement a reality

C. The men who have secretly helped King and the civil rights movement O

D. The people who have lost loved ones through acts of violence​

B

Explanation:

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.

which empire had the greatest influence on the history and cultural development of russia?