假设订单表orders用来存储订单信息，cid代表客户编号，money代表单次订购额，现要查询每个客户的订购次数和每个客户的订购总金额，下面（）sql语句可以返回正确结果。

• A、select cid,count(distinct(cid)),sum(money) from orders group by cid
• B、select cid,count(distinct(cid)),sum(money) from orders order by cid
• C、select cid,count(cid),sum(money) from orders order by cid
• D、select cid,count(cid),sum(money) from orders group by cid