Answer: 1 stands for Arabia
2 stands for Egypit, Persia, and Syria
3 stands for Spain and Berbers
or
1 stands for At the death of Muhammad, 632
2 stands for After the conquest of the first four caliphs, 661
3 stands for After the conquest of the Umayyad caliphs, 750
The answer is B. Hope it helps
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>
Answer:
B.New inventions and technology
Explanation:
Technological advances and new scientific discoveries pushed industrialization and modernization of the US economy.