Well, Columbus never actually came to America. His ship made land in the Bahamas and Cuba. He thought these islands were Asian islands because the people of Spain were unaware of the Americas, and so he wanted gold. He returned to his country and came back with more men. And killed a lot of people.
Anyway, for the sake of the American education system, I'm assuming the word the teacher is wanting is something like "recognized".
the answer is: A. The global demand for goods and services have increased.
Creating a port make it possible for producers in Georgia to distribute their products to the consumers in other countries.
Because of this, the global demands for goods produced in Georgia keep increasing over the years and it create a lot of job opportunities and purchasing power for the people in Georgia.
If Chang's divorced father married Gretchen's divorced mother, and they all live in the same house, then this would be a blended type of family.
So, two completely different parts of two completely different families are blended into one single new family that lives together. Although they weren't originally one family, they did become one because of the love of the parents who decided to get married.