________ A NOVELTY IN AMERICAN RETAILING, FIXED PRICES ARE NOW UNIV...

Question

17.________ a novelty in American retailing, fixed prices are now universal in sales.A. It was once B. Once it was C. That once D. Once

Answer

17.________ a novelty in American retailing, fixed prices are now universal in sales.A. It was once B. Once it was C. That once D. Once