Since I don't know the context of this question, I'll answer it the way a scientist would.
We know that Einstein was a scientist. Scientists are always asking questions and creating tests to solve problems. Einstein most likely didn't view his achievements as the answer to the problems of the universe. He probably saw a lot of flaws in his work. Even if he didn't, a true scientist is always questioning things. The definition of a scientific law is a theory that has never been proven false. He probably wanted to know if his achievements were theories or if they were laws.
These are just a few ideas. Take a minute to think about the context of the question and what you think that the answer should be based on that.
B. equality between racial minorities
Rise to rights for African-Americans kept on expanding after 1877. Amid the time of Reconstruction, which kept going from 1865 to 1877, Congress passed and upheld laws that advanced common and political rights for African Americans over the South.
Amid Reconstruction, seven hundred African American men served in chose open office, among them two United States Senators, and fourteen individuals from the United States House of Representatives. Another thirteen hundred African American men and ladies held selected government occupations.
A. Because the US for example is big and powerful because it has always been able to trade with different countries
He evaded the rabid dog by running into his house and locking the door.
