Hi arvinm123!
I think part of the confusion comes from overthinking answer choice (A). When you consider the analogy in the stimulus, you can see that the author concludes that government funding of NEO research is not a waste of money. To show this, the author uses the analogy of home insurance, which people buy for their homes for the same reason the governments fund NEO research. Additionally, they say that "buying home insurance makes good fiscal sense" which directly links the entire analogy about home insurance to the conclusion by implying that NEO research also makes good fiscal sense (and is thus not a waste of money).
Even though this statement can be considered part of the analogy itself, does that mean the statement cannot connect the analogy to the conclusion? No! It could still be (and is) the bridge between the two. Try to consider what other statement would then connect the analogy to the conclusion? Truthfully, I can't really pinpoint one. This just serves to further show that (A) is correct!
Answer choice (D), on the other hand, says the role of the statement is to provide a "contrast" to the situation at hand. While NEOs and home insurance are certainly different, the point of the home insurance references were to show that the situation is
analogous. If this statement were meant to contrast the situation, it would stand in direct opposition or be used as some sort of counterexample. Instead, it's being used to prove the argument because these things are alike, not different! For future questions, perhaps try reconsidering the definition of "contrast" to ensure that's really what the author is doing!
I hope this helps
Kate