(C)According to records from ancient Athens, each year young Athenian women collaborated to weave a new robe that they used to dress
that是關係代名詞受格,代替robe,意思是they used a new robe to dress此關係子句修飾robe(名詞),功能為形容詞
...and that this robe depicted scenes of a battle
that後面接著完整的句子,有主詞robe,有動詞depicted,有受詞scenes,什麼都不缺,根據句子結構判斷為名詞子句.名詞子句是名詞,前面是and,一定有另外一個名詞和它平衡,和形容詞是不能平衡的啦.
robe沒有分成兩條哦!前面的that修飾robe,後面那個that是獨立子句,沒有修飾robe咧.