Which of the following is the practice of buying and selling products and services via the Internet?

A) Social commerce.
B) E-commerce.
C) Online communities.
D) Social publishing.
E) Social shopping.

E-commerce

The buying and selling of goods and services over the internet, including the transfer of money and data to execute these transactions.

Social Commerce

A subset of electronic commerce that involves social media, online media that supports social interaction, and user contributions to assist online buying and selling of products and services.