prep SC1 191 没搜到解答,求解释！

阿七七四十九

191 The loan companyannounced it would soon lend money to borrowers with proven records of theirnot paying back their loans on time, collectively known as the subprimelending market.
A.    of their not paying back their loans on time,
B.    of not paying back their loans on time, a group
C.    of not paying back their loans on time, with such a group
D.    that they do not pay back their loans on time,     (B)
E.     that they do not payback their loans on time, such a group
答案选B，E为什么错了呢，prep语法说 ‘E 定语从句在这里表达不简洁地道；such无所指，错误且多余'

请大家说说，such不是是adj吗？表示这样的，为什么不可以用呢：这样的一个组....

阿七七四十九

up up ,求解答，谢谢了！