Retailers reported moderate gains in their November sales, as much because of their sales of a year earlier being so bad as that shoppers were getting a head start on buying their holiday gifts.
LZ,我们可以仔细的分析下E的结构来搞清楚为什么不可以选E,because of后面可跟名词,也可跟动名词,但这里跟了their bodies,而burning 在这里就只是一个分词作定语来修饰their bodies。这样一来,后面的原因状语就还是their bodies了,作为many people become obese more的原因,because of their bodies显然什么也说明不了。所以逻辑句意上它错了。