You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.

The application uses data from a Microsoft SQL Server 2005 database table. A Web page of the application contains a GridView server control.
You write the following code segment. (Line numbers are included for reference only.)

01 private void LoadGrid()
02 {
03 using (SqlCommand command = new SqlCommand())
04 {
05 command.Connection = connection;
06 command.CommandText = "SELECT * FROM Customers";
07 connection.Open();
08
09 }
10 }

You need to retrieve the data from the database table and bind the data to the DataSource property of the GridView server control.

Which code segment should you insert at line 08?

A.
SqlDataReader rdr = command.ExecuteReader();
connection.Close();
GridView1.DataSource = rdr;
GridView1.DataBind();

B.
SqlDataReader rdr = command.ExecuteReader();
GridView1.DataSource = rdr.Read();
GridView1.DataBind();
connection.Close();

C.
SqlDataReader rdr = command.ExecuteReader();
Object[] values = new Object[rdr.FieldCount];
GridView1.DataSource = rdr.GetValues(values);
GridView1.DataBind();
connection.Close();

D.
DataTable dt = new DataTable();
using (SqlDataReader reader = command.ExecuteReader())
{
dt.Load(reader);
}
connection.Close();
GridView1.DataSource = dt;
GridView1.DataBind();