Which of the following is not a unique feature of e-commerce technology？

Which of the following is not a unique feature of e-commerce technology？
A、richness
B、social technology
C、information asymmetry
D、interactivity
正确答案：C
答案解析：
Option A： Richness is a unique feature of e - commerce technology. E - commerce platforms can provide a great deal of information about products and services， including detailed descriptions， images， videos， and customer reviews. For example， an online clothing store can show multiple views of a garment， provide size charts， fabric details， and customer feedback， which is far more information - rich than a traditional in - store display in many cases.
Option B： Social technology is an integral part of e - commerce. Social media platforms are used for marketing， customer engagement， and brand building in e - commerce. For instance， companies use Instagram to showcase products， interact with customers， and drive traffic to their e - commerce websites. Social sharing features on e - commerce sites also enable users to share products with their social networks， which is a unique aspect of e - commerce in the digital age.
Option C： Information asymmetry is not a unique feature of e - commerce technology. Information asymmetry has been a long - standing issue in traditional markets as well. For example， in a used - car market， the seller typically has more information about the car's history and condition than the buyer. E - commerce actually has the potential to reduce information asymmetry through features like customer reviews， product specifications， and comparison tools. So this is the correct answer as it is not a unique aspect of e - commerce.
Option D： Interactivity is a key and unique feature of e - commerce technology. Customers can interact with the e - commerce platform in various ways， such as customizing products， asking questions via chatbots， leaving reviews， and getting real - time responses. For example， a customer can configure a computer on an e - commerce site by choosing different components， and the site will immediately show the updated price and specifications.