Which of the following is the best example of people engaged in barter? Stepon uses his debit card to purchase a $30 train ticket. LaVar agrees to swap his comic book for three of Max's baseball cards. Noreen gives Lucas a homemade cupcake for his birthday instead of a store-bought gift. Bill asks for $4,500 for his used car, but when Willis offers $3,800, Bill ends up selling it to him for $4,000 instea