885, SEC D, 2---since 不是连词吗？

2.     As the housing affordability gap widens, middle-income families are especially hard-hit, and these families can no longer qualify to buy homes, and rising rental rates force them to use far more than the standard 25 percent of their incomes for housing, leaving them with no equity or tax write-offs to offset the expenditures.

(A) and these families can no longer qualify to buy homes, and

(B) since these families can no longer afford to buy homes, furthermore

(C) for these families can no longer afford to buy homes, yet

(D) and these families can no longer afford to buy homes; however,（C）

(E) and these families can no longer afford to buy homes, for

查过以前的谈论大家都說B錯，是因為furthurmore是副詞不是連接詞;

這個我理解，但是這句話前面已經有since這個連接詞啦;

所以後面的句子只用furthurmore這個副詞應該是可以的呀 since S+ V, S+V

而且在句意上;個人以為 B的句意更;因為實在看不出有什麼轉折的意思....

請大NN們幫忙; 謝謝

还得自己顶，NN快出来帮我解释一下呀！

谢谢！！

我不是NN，发表一下自己的观点。 我觉的since是连词，这里连接2个句子应该是问题，我也支持选B。毕竟原句说是个递进的关系更合理，转折的关系实在有点牵强了呀！

还希望NN给个CONFIRMATION了呀！