18. Each of Hemingway's wives--Hadley Richardson. Pauline Pfeiffer. Martha Gelhom. and Mary Welsh --were strong and interesting women, very different from the often pallid women who populate his novels. (A) Each of Hemingway's wives--Hadley Richardson, Pauline Pfeiffer, Martha Gelhom, and Mary Welsh--were strong and interesting women, (B) Hadley Richardson, Pauline Pfeiffer, Martha Gelhorn, and Mary Welsh--each of them Hemingway's wives--were strong and, interesting women, (C) Hemingway's wives--Hadley Richardson, Pauline Pfeiffer, Martha Gelhom, and Mary Welsh--were all strong and interesting women, (D) Strong and interesting women—Hadley Richardson, Pauline Pfeiffer, Martha Gelhom, and Mary Welsh--each a wife of Hemingway, was (E) Strong and interesting women—Hadley Richardson, Pauline Pfeiffer, Martha Gelhom, and Mary Welsh--every one of Hemingway's wives were

请问D选项中的主语(subject)为何是women,而不是each, each a wife难道做插入语的同位语?

为何E选项中的主语就是every one?而不是women?

如果主语是women那every one在句中成分不好定，同位不可能。其实every one和women谁是主语已是次要，如og后面所说E is very awkwardly structured.