C2C, or consumer-to-consumer, refers to a business model where individuals sell products or services directly to other individuals. This model is commonly facilitated by online platforms, such as eBay or Etsy, which connect buyers and sellers without the need for a traditional retailer. In a C2C environment, transactions can include a wide range of items, from handmade crafts to second-hand goods. This approach allows consumers to monetize their unused items while providing buyers with unique or affordable options. The rise of social media has also contributed to the growth of C2C transactions through platforms like Facebook Marketplace.