How to Map Dropdown Values with the below object to textarea when onChange method is triggering using react

Below is my object

 const carModel = {
    Volvo: '2015 model',
    Toyota: '2016 model',
    Benz: '2017 model',
    Tesla: '2021 model'
  }

i need to populate All the car model For Eg. Volvo, Toyota, Benz, tesla into a Dropdown and Corresponding values into Textarea in React. Can someone help in resolving this?