Answer:
Some benefits are that you can then learn what seems to be true. If multiple sources say the same things in some way, it's probably true. Also, some sources may contain more and/or clearer information than others. Some may include quotes others cannot provide, have pictures, and maybe even videos. The more sources you have, the more (accurate) information you can get.
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.
The Power of Detergent, or A guide on getting rid of stains.