关于with引导的介词短语放在句首的问题

With diamonds, as with all gems, one should ask for a written description of one’s purchase; the description may prove useful later if you have reason to believe the jeweler misled you.

(A) one should ask for a written description of one’s purchase

(B) you should ask for a written description of your purchase

(C) a written discretion of your purchase is what one should ask for

(D) a written description of one’s purchase is what should be asked for

(E) a written description of your purchase is what should be asked for

正确答案 （B）。请问with放在句首表示什么意思呢？这样的独立结构对主句的主语没有要求的吗？

查置顶帖知识点连接。

CD有很多宝贵的前人总结，要善于利用。

多谢carolhide的提醒，我已经看过了一些前辈们的讨论

但是我仍然认为这是一句比较特殊的句子，因为这里开头的with比较适合于Longman中第五条解释，表示“关于，对于，至于”，放在句首比较类似与'concerning'，而并非一般地表示伴随状况，尽管后面同样是要求以人这样的行为主体作主句的主语。