Design the graphical user interface (GUI) for a BMI calculator with the following fields: a) BMI Calculator should accept the username. (1 mark) (2 marks) b) User can pick his/her gender through drop-down menu. c) User should enter his weight and height using text fields. (2 marks) d) Use slider control to input user age. (1 mark) e) User can enter weight in kilograms (kg) or pounds (lbs). A checkbox can be used to check whether the weight is entered in pounds or not. If checkbox is checked, it means the weight is entered in pounds. (1 mark) f) Show two horizontal buttons with "Calculate BMI" and "Reset" text. g) A hidden label which will display the BMI result. (2 marks) (1 mark)