请教！A说蔗糖based的酒产量增加了 蔗糖的消耗却少了？A自相矛盾？想不通

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Contrary to earlier predictions, demand for sugarcane has not increased in recent years. Yet, even though prices and production amounts have also been stable during the last three years, sugarcane growers last year increased their profits by more than 10 percent over the previous year’s level.
Any of the following statements, if true about last year, helps to explain the rise in profits EXCEPT:

• AA.Many countries that are large consumers of sugarcane increased their production of sugarcane-based ethanol, yet their overall consumption of sugarcane decreased.  [color=rgb(170, 170, 170) !important]分析A选项
• BB.Sugarcane growers have saved money on wages by switching from paying laborers an hourly wage to paying them by the amount harvested.  [color=rgb(170, 170, 170) !important]分析B选项
• CC.The price of oil, the major energy source used by sugarcane growers in harvesting their crops, dropped by over 20 percent.  [color=rgb(170, 170, 170) !important]分析C选项
• DD.Many small sugarcane growers joined together to form an association of sugarcane producers and began to buy supplies at low group rates.  [color=rgb(170, 170, 170) !important]分析D选项
• EE.Rainfall in sugarcane-growing regions was higher than it had been during the previous year, allowing the growers to save money on expensive artificial irrigation.
  

阿霖

A前半句就是一个迷惑的说法，甘蔗难道只用来做乙醇么？sugarcane-based ethanol增加不能说明任何问题，后半句才是重点，consumption减少，因此不能解释为什么利润会上升。另：yet在此句表转折。