The correct answer is: C. E-Commerce
E-commerce is the buying and selling of goods or services using the internet, and the transfer of money and data to execute these transactions. It is a subset of electronic commerce, which also encompasses activities such as electronic funds transfer, supply chain management, and customer relationship management.
Online shopping is a subset of e-commerce that refers to the buying and selling of goods or services over the internet. It is a convenient and efficient way to shop, as it allows consumers to browse and purchase items from the comfort of their own homes.
Net banking is a service that allows customers to access their bank accounts and perform transactions online. It is a convenient and secure way to manage your finances, as it allows you to do things like transfer money, pay bills, and check your account balance without having to go to a branch.
Digital marketing is a form of marketing that uses digital technologies, such as the internet, mobile phones, and social media, to reach and engage with customers. It is a rapidly growing field, as businesses increasingly turn to digital channels to reach their target audiences.
None of the other options are correct.