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.

of their sales of a year earlier being so bad as that of their sales a year earlier having been as bad as because of their sales a year earlier being as bad as because their sales a year earlier had been so bad as because their sales of a year earlier were as bad as that

XDJM们帮我看看这题，两个BECAUSE 把我弄糊涂了

选D。as much...as...的并列平行结构。其中as中并列成分是because引导的从句。不知对否，大牛指点