Exercise 01 (15 marks) Build the following Dental Payment System App using WPF. You can use appropriate layout controls. If patient is Senior, then give 10% discount, if he/she is in category -kids/Youth then 15% discount. Add one combo box under Address textbox (drop down for Provinces - Alberta - HST 7%, Ontario- HST 13% and Quebec-HST 6%). As per the selection of the province, Total Charges should be calculated accordingly. CalculatorApp Dental Payment System Dental Services Available Name of Patient: Flossing $20.00 Address: Filling $75.00 O Senior O Kids and Youth O Adult Root Canal $150.00 Calculate Output is displayed here in this textblock. You need to print Patient Name along with Total charges