[求助]请帮助解答XDF的逻辑谢谢！

1 The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which procide it with necessary sugars. the underground filaments of chanterelles, which extract the sugars, in turn prodive nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chantereflles growing beneath a Douglas fir seriously endangers the tree. which of the following ,if ture, casts the most doubt on the conclusion draw above? D the harvesting of wild mushrooms stimulates future growth of those mushrooms.

E Young Douglas fir seedings die without the mutrients and water provided by chanterelle filaments.

2 Advertisement: The world's best coffee beans come from COLOMBIA. The more Colombian beans in a blend of coffeem the better the blend, and no company purchase more Colombian beans than Kreem Coffee. Inc. So it only stands to reason that if you buy a can of Kreemo's coffee,you're buying the best blended coffee available today. The reasoning of the augument in the advertisement is flawed because it overlooks the possibility that

C Kreemo sells mote coffee than does any other company

E the best unblended coffee is better than the best blended coffee