I think it is let no one hear.
President Harding? or Martin Luther King Jr?
the natural barriers were the himalaya mountains
I believe the correct answer from the choices listed above is option D. Scientists <span> like Einstein, Bethe, Fermi, Teller, and Bloch emigrate in order to escape persecution and pursue scientific research in the UNITED STATES. Since they have more freedom in that country. Hope this answers the question.</span>
