顺治丁亥七月望夏子存古以奉表唐王谢恩为海上逻卒所获洪经略密行土抚军索存古急时余读书虎丘石佛寺不知也一日乘凉散步将至憨憨泉见一小沙弥同青衣数人汲水而饮遥望沙弥有似存古趋而视之则竟是也问则曰我已就缚上道无资斧其为我谋之余急索囊中【所】有倾付之送其登舟有经略差官王姓【者】虑有他谋诘询姓名词气甚厉余【以】世谊交情详告之且曰吾为行者治装於尔未尝无益何怒【之】有於是沽酒脯为别

The nurse is administering magnesium sulfate to a client with preeclampsia. The nurse explains to the client that this drug is given for which of the following reason

A．To prevent seizures.

B．To reduce blood pressure.

C．To slow the process of labor.

D．To increase diuresis.