the goods news is based on experiences in gmat, I pick C even though I still struggle with the idea of assumption in an argument. I have 2 reasons.
First, other options discuss something that do not appear in the original argument and hence do not focus on the main topic of giving births.
Second, C has the pattern.
First, other options discuss something that do not appear in the original argument and hence do not focus on the main topic of giving births.
Second, C has the pattern.





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