Some plants, such as kudzu, are exotic species. Travelers brought them to the United States, and many are thriving.

B. From another country.

Explanation:

The term "exotic" is used to generally refer to something that is unusual, or is a foreign species, not native or locally found. It can be used to refer to things that are not from the local area and are brought from another place, usually a faraway land.

In the given context, the term "exotic" is used to refer to the plants that were "brought to the United States ... [and] thriving." This means that these plants like the kudzu were taken from another country and brought to be planted in the new land. The word "thriving" suggests that they are surviving in the new land, capable of prospering and growing.

Thus, the correct answer is option B.

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.

(the answer is d)

hope this !