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单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You write the following code segment in the code-behind file to create a Web form:   01 string strQuery = "select * from Products;"   02   + "select * from Categories";   03 SqlCommand cmd = new SqlCommand(strQuery, cnn);   04 cnn.Open();   05 SqlDataReader rdr = cmd.ExecuteReader();   06 ►  07 rdr.Close();   08 cnn.Close();    You need to ensure that the gvProducts and gvCategories GridView controls display the data that is contained in the following two database tables: the Products database table the Categories database table   Which code segment should you insert at line 06?()

A、A

B、B

C、C

D、D

  • D
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