GRE Text Completion: ETS Official Practice 150-GRE OP150:填空 - FK1S1X5H1M5UHDFFO

Consumers may think that genetic engineering of foods is something new, but humans have been modifying plants for ages; the ____________ is not that new genes are introduced but that genes can now be moved from one species to another. A. novelty B. quandary C. advantage D. innovation E. discrepancy F. predicament