Add how did you hear about us field on the cart page

Sale price Price $85.00 Regular price

Tax included.
If you are interested in tracking how people reach your store and would like to gather more information for marketing purposes then it would be beneficial to add a input field on the cart page that allows customers to answer the questions where they heard about your store, this can be multiple options that they can choose from, a drop-down list or just any text that they can enter for your research