The user can enter the value to be converted in the textbox and select the type of conversion from the dropdown menu. The 2 option boxes must be populated with different options depending on the user's selection from the drop down menu. Example, if the user selects "Length" option, then both option boxes must be populated with the options like "Centimeter", "Feet" and "Inches".
Following options must be available for each of the unit type:
Temperature: Celsius, Farenheit, Kelvin Area: Acre, Square foot Length: Centimeter, Feet, Inches.