How would you modify the solution to exercise #4 to filter for invoices dated from Decemvber 1,2015 to February 29, 2016 ?

Exercise #4 - SELECT [dbo].[GLAccounts].AccountDescription, COUNT(*) LineItemCount, SUM([dbo].[InvoiceLineItems].InvoiceLineItemAmount) AS LineItemSum FROM [dbo].[GLAccounts] JOIN [dbo].[InvoiceLineItems] ON [dbo].[GLAccounts].AccountNo = [dbo].[InvoiceLineItems].AccountNo GROUP BY [dbo].[GLAccounts].AccountDescription HAVING COUNT(*) > 1 ORDER BY LineItemCount DESC;

Please Advise.