To determine which opening better conveys the purpose of the argumentative text, we should consider how well each introduction sets the stage for the argument that will follow.
Passage 1 Analysis:
If Passage 1 focuses on Nim's attire during his first meeting with his human family, it may not directly highlight the main argument regarding animals and language. While it might provide some context, it doesn't clearly establish the purpose or direction of the argument about language.
Passage 2 Analysis:
If Passage 2 describes language as a complex system and references an experiment involving Nim the chimpanzee, it likely outlines the topic's significance and introduces the framework of the discussion. This is crucial for an argumentative text, as it gives readers a clear understanding of what will be argued and why it's important.
Conclusion:
Given this analysis, C) passage 2, because it mentions the experiment with Nim the chimpanzee is the best choice. It connects directly to the argument about language and sets a clear purpose for the text. Option D might also be a strong contender, but the specific mention of the experiment in Passage 2 likely aligns more closely with establishing the argumentative framework.