GMAT Sentence Correction
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Source: OG
Level: 4
Even their most ardent champions concede that no less than a technical or scientific breakthrough is necessary before solar cells can meet the goal of providing one percent of the nation's energy needs.
- A that no less than a technical or scientific breakthrough is necessary
- B that nothing other than a technical or scientific breakthrough is needed
- C that a technical or scientific breakthrough is necessary
- D the necessity for an occurrence of a technical or scientific breakthrough
- E the necessity for a technical or scientific breakthrough occurring