一个不明白的问题

上新东方的时候知道so that 和so as to 是正确的形式, 而such that 为干扰选项, 看了一道题后,  里面用了such that 怎么也是对的啊? 是不是因为D比其他选项要相对正确一些啊?

Several years ago the diet industry introduced a variety of appetite suppressants, but some of these drugs caused stomach disorders severe enough to have them banned by the Food and Drug Administration.

(A) stomach disorders severe enough to have them

(B) stomach disorders that were severe enough so they were

(C) stomach disorders of such severity so as to be

(D) such severe stomach disorders that they were（D）

(E) such severe stomach disorders as to be

such+N that结构正确

so+adj