Final answer:
The non-unique feature of e-commerce technology among the options provided is traditional payment methods, as e-commerce mainly relies on electronic payment systems rather than cash or checks.
Step-by-step explanation:
The unique features of e-commerce technology include the capability for online shopping, a global reach enabling consumers to order products from anywhere in the world, and the ability to provide a personalized customer experience through data analysis and customization of offerings. However, one option listed is not unique to e-commerce and is a carryover from traditional commerce: traditional payment methods, like cash or check, which are generally not used in online transactions, making option 4 the correct answer.
Indeed, online shopping platforms and e-commerce websites typically rely on electronic payment methods such as credit cards, e-wallets, or online banking services. These methods have been developed to facilitate quick, secure, and convenient transactions over the internet, contrasting the more conventional payment methods that are suitable for in-person exchanges but are not designed for or used in online marketplaces.