Answer: to describe the meaning of the shell strings.
In this excerpt, the author explains to us what the meaning of the shell strings is. He tells us that the shells symbolize the union of the nations. Option B is incorrect, as the passage does not discuss anything related to the consequences of disobeying one's tribe. Option C is similarly incorrect, as the passage does not mention any of the traditions of the Lords. Finally, the passage does not explain the history of each tribe.
An appropriate choice is ...
... D. make a general comment more specific
I believe your answer is C. If I'm wrong, then my apologies.
Answer:
to escape slavery to become free
Explanation:
Becca's science fair project as beginning
house and wow as middle sentence
start over as end of sentence