Final answer:
The correct classification for e-commerce websites where one customer can sell directly to another customer is C2C (Consumer to Consumer).
Step-by-step explanation:
The correct classification for e-commerce websites where one customer can sell directly to another customer is C2C (Consumer to Consumer). In C2C e-commerce, individuals can engage in online transactions with each other, bypassing the need for a business intermediary. Popular examples of C2C websites include eBay and Craigslist.