GWD-26-23 (HELP!!)

Trans World Entertainment Corporation, which owns the Record
                    Town and Saturday Matinee retail chains, announced that since sales of up to one-fourth of its stores are poor, they will be closed.

A.     that since sales of up to one-fourth of its stores are poor, they will be closed.

B.     it is closing up to one-fourth of its stores, which accounted for its poor sales

C.    it was closing up to one fourth of its stores because of poor sales.

D. to be closing, on account of poor sales, up to one-fourth of its stores.

D.    having poor sales, such that up to one-fourth of its stores will be closed.

大家帮忙看看。答案是C，可D为什么不对啊?? 感觉更简洁明了啊!

D的意思变了，D的意思是corporation要关了，因为销售不好，要关四分之一的店

句子的意思是，corporation关了它四分之一的店，因为它们销售不好

be up to sb.

close up.

close up-to should be read like this