关于n+that和n+donging结构

1.  The Wallerstein study indicates that even after a decade young men and women still experience some of the effects of a divorce occurring when a child.

(A)  occurring when a child

(B)  occurring when children

(C)  that occurred when a child

(D)  that occurred when they were children

(E)   that has occurred as each was a child

新东方给的一条结论是N+donging结构要求donging的动作发生与主句谓语有同时性

不过我不理解，望那位大侠通过上面的例题给讲解下。谢谢！！~~~~~

1.  The Wallerstein study indicates that even after a decade young men and women still experience some of the effects of a divorce occurring when a child.

(A)  occurring when a child

(B)  occurring when children

(C)  that occurred when a child

(D)  that occurred when they were children

(E)   that has occurred as each was a child

答案是D？？

1.  The Wallerstein study indicates that even after a decade young men and women still experience some of the effects of a divorce occurring when a child.

(A)  occurring when a child      a child 前面有没有对应的单数

(B)  occurring when children  when 名词？ 句意无法解释

(C)  that occurred when a child    同A

(D)  that occurred when they were children

(E)   that has occurred as each was a child has不对，句意罗嗦