大全985的答案到底是是什么？

985.     Those who have visited the Grand Canyon have typically seen layers of sediment in the gaping canyon, with different colors that mark the passage of time like the rings in a tree trunk.

(A) seen layers of sediment in the gaping canyon, with different colors that mark

(B) see layers of sediment in the gaping canyon, whose different colors mark

(C) been seeing layers of sediment in the gaping canyon, whose different colors are markers of

(D) been able to see layers of sediment in the gaping canyon, with different colors marking

(E) seen layers of sediment in the gaping canyon, marking by different colors

请问答案到底是A还是D，讨论区中最后也没有明确争论的结果啊好像

谢谢！！！

我倾向选A,通过看不同的颜色来看这些沉积层的

be able to do是有能力做什么，感觉这是强加进来的意义

请ＮＮ指教

而且different colors that mark the passage of time like the rings in a tree trunk

不同的颜色（标识了经历的年代）就如同树的年轮一样（标识了不同的年代）

我也觉得应该是A。不仅是意义问题，D后面with引导的貌似一个独立主格结构，但又不是做状语的。

答案: D

时态: have的出现标志了现在完成式,排除B.

现在分词修饰歧义: E中的marking的修饰对象不明确, 存在歧义, 可能修饰canyon. 可能修饰seen, 做伴随动作. 所以排除. 

代词指代: A中的that mark中that指代不明确. 因为可以指代colors, 也可以指代layers.

注意Ｄ中been able to 完全没有任何错误，不论是逻辑上还是语法上．后面的with是独立主格结构，所以marking是现在分词．