Given a valid SqlCommand object named selectCommand, which of the following statements creates a SqlDataReader object that returns a single row?
a. Dim employeeReader As SqlDataReader = _
selectCommand.ExecuteSqlDataReader(Single)
b. Dim employeeReader As SqlDataReader = _
selectCommand.GetSqlDataReader()
c. Dim employeeReader As SqlDataReader = _
selectCommand.ExecuteReader(CommandBehavior.SingleRow)
d. Dim employeeReader As SqlDataReader = _
selectCommand.GetSqlDataReaderSingle()

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