请教885-C-17

请教885-C-17
17. Most North Carolina ski resorts broadcast music onto the slopes; skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are no slopes without music.
(A) skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are
(B) because skiers can choose hard rock, soft pop, or “beautiful music,” there are
(C) however, skiers can choose among hard rock, soft pop, “beautiful music,” and
(D) although skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are
(E) skiers can choose among hard rock, soft pop, “beautiful music” slopes, but
答案：D

问题：我看了前人得帖子，还是不明白为什么用转折得关系，我选了B，我觉得“因为人们能有很多得音乐选择，（所以都找得到自己喜欢得音乐），所以每条滑道都有音乐。”虽然牵强一点，说得通呀。要是D：尽管可以选择，但是每条滑道都有音乐。我觉得还不如因果关系说得通呢。请大家解惑，谢谢！

没看见slopes，真是该打呀。

谢谢mm！