Sentence Correction (SC) | Re: Those who have visited the Grand Canyon have typically seen

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)seen 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,
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