单项选择题
销售部和财务部在两栋不同的楼里。两个部门由一个2兆位的网络连接。并且都使用SQL Server 2005。销售部在一个名为DB1的数据库里记录所有的销售事务。DB1包含380张表，大小为10GB。财务部为做报表可以只读方式访问DB1里的4张表。财务部会全天进行查询并需要尽可能最新的数据。财务部的用户告诉你报表执行非常缓慢。为优化网络容量，你的部门决定为财务部提供此四张表的副本。现在，你需要提供这些表的副本。因此，你想用一种占最小网络带宽的复制法达成此目标，该怎样做？（）
A.将DB1镜像到财务部，以高有效性模式配置镜像
B.建立DB1的每日事务日志传输到财务部
C.建立每日快照复制到财务部，定义一个只包含这四张表的发布
D.建立事务复制到财务部，定义一个只包含此四张表的发布
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