Researcher: Any country can determine which type of public school system will work best for it by investigating the ...

Alyona1983 on February 21, 2020

Why not C?

Hi team, I see why the correct answer choice is solid, but I can't see why C is wrong.

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Skylar on February 22, 2020

@Alyona1983, happy to help.

Answer choice (C) is incorrect because its negation does not make the passage fall apart. We do not need to be able to determine which parts of the school systems account for the differences in order to adopt the entire system that produced the highest scores.

Does that make sense? Please let us know if you have any other questions!

Alyona1983 on February 22, 2020

Hi Skylar,
I can't see how it would work practically, but I can see how this is not necessary/needed in terms of our argument. Thank you for your quick response.

Skylar on February 23, 2020

@Alyona1983,

Glad I could help! Let's see if we can make it clearer on a practical level with an example.

Say we have two different public school systems in two different countries. The system in Country A uses pen and paper and separates classrooms by gender. The system in Country B administers tablets to its students and is coeducational. Say Country B scores higher than Country A on the tests.

Answer choice (C) is interested in further testing that would allow us to determine if Country B's higher scores are specifically due to its use of technology, to its coeducational environment, or to some other factor. If we are able to determine the specific feature responsible for the higher scores, countries could adopt this single feature without adopting the entire system.

However, this is not required by the passage. The passage only discusses adopting the system of whatever country scores highest, so it provides no reason for or need to investigate which specific features are responsible for a difference in scores.

Does that help at all?