All planets orbit a star. An object has the same property. Which statement is correct?
Answer and explanation
Correct answer: B. We cannot tell whether it is one of the planets
- Step 1: The first statement says that all planets have the property, not that only planets have it. Step 2. Other things may share the property, so no conclusion about the group follows. Answer: We cannot tell whether it is one of the planets. Why not the others: It must be one of the planets is what you get if you reverse the statement. It cannot be one of the planets is what you get if you deny without evidence. It is the largest of the planets is what you get if you invent extra facts.
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