请教PREP2 94

94.
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Even though her career was cut short when she was in her prime and the fifteen recordings she made were disappointing artistically as well as technically, Olive Fremstad (1871-1951) has never been entirely forgotten by opera aficionados.

(A) though her career was cut short when she was in her prime and the fifteen recordings she made were

(B) though her career was cut short while in her prime, with the fifteen recordings she made

(C) as her career had been cut short when she was in her prime, with the fifteen recordings she had made

(D) with her career having been cut short when she was in her prime, and the fifteen recordings she made were

(E) with her career cut short while in her prime, and that the fifteen recordings she made were

这道题目的答案是A，但是我想问一下为什么and前面没有逗号啊？因为我觉得and连接的是两个完整的句子，谢谢大家。

因为前面有even though

而句意一般都在第一个逗号出现的地方转折

BTW,楼主看题真仔细

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