South Korea has witnessed the world’s most dramatic growth of Christian congregations; church membership is expanding by 6.6 percent a year, fully two-thirds of the growth coming from conversions rather than the population increasing.
(A) coming from conversions rather than the population increasing
(B) coming from conversions rather than increases in the population
(C) coming from conversions instead of the population’s increasing
(D) is from conversions instead of population increases
(E) is from conversions rather than increasing the population
My simple thought is:
X rather than Y => X >Y
X instead of Y => X and no Y (definitely no Y). In rather than, we can have little Y, but ensure that X>Y
Based on this sentence. (D) and (E) will make run-on errors, so I will eliminated
Thinking about the meaning of sentence, church membership is expanding ..., 2/3 growth coming from (conversions) X rather than/instead of Y ( increases in the population). Of course 2/3 growth still can come from Y, so we use "rather than" is better. Eliminate (C).
Between (A) and (B), we have to choose which items are paralleled each other. "conversion" parallels with "increase" or "population". Certainly, "increase" wins. So, Choice (B) is the final choice.
Hope that helps.
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