Must Be TrueX-SN. The correct answer choice is (B)
This stimulus gives a few conditional rules and then applies them to a specific case.
A scientific theory is a good scientific theory if it satisfies two requirements. You should realize that the relationship expressed is equivalent to “if and only if,” since IF the theory satisfies REQUIREMENTS, it is a good theory. You could have diagrammed:
- Accurately describe
Good theory +
The illustration is that since Aristotle’s theory failed to make definite predictions, it was not a good theory, even though it did describe a wide range of phenomena in terms of a few elements.
You should remember that this is an EXCEPT question, so we will pick the choice that is not necessarily true.
Answer choice (A): This is inferred from the passage, and is incorrect.
Answer choice (B): This is the correct answer choice. Since the stimulus indicates that Aristotle’s theory involved describing what things are made of, it seems likely that this choice is actually false, because a description of what everything is made of does involve a wide range of physical phenomena. In any case, it might not be true, so this is a good answer to a Must Be True EXCEPT question.
Answer choice (C): Since the stimulus specifically states that Aristotle’s theory satisfies the first requirement, this answer choice is inferred, and is incorrect.
Answer choice (D): The accurate description is further defined as using only a small number of elements, so any theory using a large number of elements would fail to meet the first requirement. This choice is inferred, and is wrong.
Answer choice (E): Since the stimulus mentions that Aristotle’s theory satisfies the first requirement, we know that this choice is inferred, and is incorrect.