求助大全sec15-15

One variety of partially biodegradable plastic bever-

   age container is manufactured from small bits of

   plastic bound together by a degradable bonding agent

   such as cornstarch. Since only the bonding agent

   degrades, leaving the small bits of plastic, no less

   plastic refuse per container is produced when such

   containers are discarded than when comparable

   nonbiodegradable containers are discarded.

   Which of the following, if true, most strengthens the

   argument above?

   (A) Both partially biodegradable and nonbiodegrad-

       able plastic beverage containers can be crushed

       completely flat by refuse compactors.

   (B) The partially biodegradable plastic beverage

       containers are made with more plastic than

       comparable nonbiodegradable ones in order to

       compensate for the weakening effect of the

       bounding agents.

   (C) Many consumers are ecology-minded and prefer

       to buy a product sold in the partially biode-

       gradable plastic beverage containers rather than

       in nonbiodegradable containers, even if the

       price is higher.

   (D) The manufacturing process for the partially bio-

       degradable plastic beverage containers results

       in less plastic waste than the manufacturing

       process for nonbiodegradable plastic beverage

       containers.

   (E) Technological problems with recycling currently

       prevent the reuse as food or beverage containers

       of the plastic from either type of plastic bev-

       erage container.

答案是B,可是E是什么意思，为什么不对？