争议题GWD25-Q24，之前的讨论贴不能说服我

24. GWD25-Q24

Although improved efficiency in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting consumption.

A.      in converting harvested trees into wood products may reduce harvest
  rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting

B.       in converting harvested trees into wood products may reduce harvest
  rates, demand will be stimulated because of increasing supply and
  lowering prices, which boost

C.      of converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices,
  which boosts

D.      of harvested trees being converted into wood products may reduce
  harvest rates, it will stimulate demand, because it will increase supply
  and lower prices, thereby boosting

E.       when harvested trees are converted into wood products may reduce harvest rates, demand will be stimulated because of increasing supply
  and lowering prices, which boost

------------------------------------------------------------------------------------------A B 讨论贴的答案都倾向于选A

虽然讨论贴中大家都倾向选A，但是我反而对B有点偏向，我认为关键是，我觉得boost consumption只需要lower price就可以引起了呀，增加supply与boost consumption无关呀，所以我觉得因该用which boost去修饰lowering prices, 而不该用分词伴随整个句子。请NN帮忙再看看，就要考试了，感激不尽。。。

lowering price 要先引起 demand的增加，然后才能引起实质性的消费的增加啊

而且lowering price也是要由于 increased supply才能引起的啊。这个学过最基本的经济学原理的都知道呢。 

你要说是 lowering price引起消费增加也可以。你要说 demand的增加引起消费的增加也可以。你要说 increased supply 引起消费增加也是有道理的。

但是其实是improved efficiency--> increasing supply (因为生产总量增加了）-->stimulate demand 

                                                ---> lowering prices （因为成本降低了）

这整个过程导致了 boosting consumption才更确切。这是我觉得A好的原因。 

B的话缺失了一个逻辑关系

 Although improved efficiency  in converting harvested trees into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost consumption. 

它说了 demand will be stimulated because of increasing supply and lowering price

但是它并没有说明这个increasing supply and lowering price是由于 improved efficieny 引起的

整个逻辑线就变成这样：

increased efficienty (注意了这里是断掉了）XXXXX  increasing supply and lowering price--> stimulate demand--> boost consumption