What should be typed in the missing code" section to calculate how many days a person wants to reserve the hotel room? private void btnReserve_Click(object sender, EventArgs e) { DateTime fromDate = fromDatePicker.Value; DateTime toDate = toDatePicker.Value; if (fromDate toDate.Date) { MessageBox.Show("From Date cannot be later than To Date. Please make a valid selection"); } else { dateLabel.Text = /"missing code*/ Select one adatelabel resto Date - from Date Day.ToStringo dy on.datelabel Text = temne - toate.Dysh ToString gay O c datelabelText (toate fromDate).ToString days Oddelabel Text ChromDate - to Datel.ToString day Clear my choice Activate w