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Which statement best expresses the central idea in the article?

A
Scientists have discovered a way to prevent genetic defects in babies, but some believe genetic development should be left to nature
B
Scientists have discovered a way to prevent genetic defects in babies, but some worry that the process could be used for great economic gain
C
Scientists have discovered a way to prevent genetic defects in babies, but the method is against many families’ religions
D
Scientists have discovered a way to prevent genetic defects in babies, but the process is still very risky