(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
Solution
Logical + Parallelism
A: there are no slopes is an independent clause and therefore, its usage after coma leads to coma splice error.
B: 'Because' is wrong, (it's not a real cause-effect relationship; the writer is emphasizing the contrast between the availability of different musical slopes and the unavailability of silent slopes, so 'although' is better)
C: and along with however cant be used where contrast is shown.
E: skiers can choose among P, Q, R, but no S is not parallel.
It should be: skiers can choose among P, Q, and R, but not among S, T, and U
D: The intended meaning, although there is a choice among music types but there is none without music, is conveyed well.
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