62 LR Two Question 18
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Comments
Conclusion :
Determine ET exists - > ET is intelligent as humans
or
ET not smart - can't determine ET exits
Premise:
we can't sent spacecraft and ET is smart.
By saying ET isn't smart then we would have to send a spacecraft, we are saying that there are only two options? I guess the conditional makes that possible?
Yes, you've got it—the argument does assume that's the only option, and (D) asserts that assumption.
Hello!
premise; not spacecraft & smart
conclusion: Sentient-> determine exist -> smart.
I thought this is like syllogism question, because I wrote down conditional relationship when I saw the if and unless and there is common point- smart-, so I tried to connect between premise to conclusion. However following your explanation, you focus on the relationship between premises. I wonder how to distinguish these types, whether it is syllogism or not
Also, I couldn't understand why the second sentence is the reason of the third one. the stimulus didn't mention of it. I might be confused after drawing the conditional relationship an d not understand the structure reading between second and third sentence
Focus on the gap! The flaw in the argument is the thing you have to fix in order to prove the conclusion. In all cases, the right answer to the Suff. Ass. question will fill in all the gaps in logic from the argument. Here, there are only two sentences (so I don't quite follow your second question); the first one lays out the conclusion, and the second tells us why we should believe that conclusion. However, that second sentence isn't enough to prove that conclusion; we'd need more evidence. If (D) is true, then when you add it to the argument, we do have enough evidence to prove the central claim. That's how we can recognize it as the correct answer.