I would say c since he asked in the end sentence.
<span>
"And so I leave it with all of you: Which came out of the opened door - the lady, or the tiger?"</span>
Answer:

Explanation:
"to migrate" means "to move somewhere warmer for a season".
<u>Example:</u>
Most of the birds migrate from one place to another in search of either food or new shelter.
<u>Sentence:</u>
John migrated to another country to find a new job.
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
In essence, the author is stating that the degree of diversity that exists in the United States is much greater than any other country in the world. Any time there is a lot of diversity, there is the potential for problems.