34 If you had been in Napa Valley in the 1920s, what would you have probably seen? (A)A group of winemakers organized a foundation to promote the wine business. (B)Few people were running the wine industry because of the restriction of the law. (C)Growers and vintners adopted highly-technological skills to produce superb wine. (D)Wild grapes were seen here and there while the wine business was still in its infancy.