新鲜出炉gmat prep一题－－不知道考点在哪里啊

(a)that creatures of the seabed were suffering from dwindling food supplies, possibly resulting from increasing

(b)that creatures of the seabed were suffering because food supplies were dwindling, possibly as a result of an increase in

我选的是a 答案是b。为什么啊。她的考点在哪里啊。是句子的逻辑问题么

我也选的A，我想问问resulting在这里修饰的是主句还是从句？这句里看起来好象是从句样。这种主从句，分词在句末，是不是分词都是就近修饰从句，不管是什么从句？

B里的as a result of 好象也是就近修饰的 because从句？！

请大家指教哦

B:because,as a result重复

as a result of后跟名词性成分，此句说的是一个过程导致的，所以用resulting from（分词做状语） increasing（强调过程）更好

我的问题是这个哦，好象楼上的人们都没回答我的问题，大家看看我的问题吧