求解！GWD-24-30

请问为什么这道题的C是错的呢？

Q30P79.

Based on records from ancient Athens, each year young Athenian women collaborated to weave a new woolen robe that they used to dress a statue of the goddess Athena and that this robe depicted scenes of a battle between Zeus, Athena’s father, and giants.

A.      Based on records from ancient Athens, each year young Athenian women collaborated to weave a new woolen robe that they used to dress

B.       Based on records from ancient Athens, each year young Athenian women had collaborated to weave a new woolen robe with which to dress

C.      According to records from ancient Athens, each year young Athenian women collaborated to weave a new woolen robe that they used to dress

D.      Records from ancient Athens indicate that each year young Athenian women collaborated to weave a new woolen robe with which they dressed
            

E.       Records from ancient Athens indicate each year young Athenian women had collaborated to weave a new woolen robe for dressing

明白了。谢谢！