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
答案是D我选了E 大家说E在语法上有错吗? 如果没有这又是effectiveness and correctness 的差别罗?怎样判断逻辑意义的差别呢?