WAP (Wireless Application Protocol) is the correct answer.

Explanation:
WAP (Wireless Application Protocol) is a technical standard for accessing information over a mobile wireless network. It provides Internet access from mobile devices, such as smartphones and tablets.

WAP uses several protocols and technologies to enable mobile internet access. Some of these protocols include:

1. Wireless Markup Language (WML): WML is a markup language used to create content for WAP-enabled devices. It is similar to HTML but optimized for mobile devices with limited processing power and screen size.

2. WAP Gateway: The WAP gateway acts as an intermediary between the mobile device and the internet. It converts the requests and responses between the WAP protocol and the standard internet protocols, such as HTTP (Hypertext Transfer Protocol).

3. WAP stack: The WAP stack consists of multiple layers that handle different aspects of the communication process. It includes the session layer, the transaction layer, the security layer, and the application layer.

4. WAP Browser: A WAP browser is a software application that runs on the mobile device and allows users to access WAP content. It interprets WML and displays the content on the mobile device's screen.

5. Wireless Transport Layer Security (WTLS): WTLS is a security protocol used in WAP to provide secure communication over the wireless network. It ensures the confidentiality and integrity of the data transmitted between the mobile device and the WAP gateway.

In summary, WAP is a protocol that enables mobile devices to access the internet. It uses various protocols and technologies, such as WML, WAP gateway, WAP stack, WAP browser, and WTLS, to provide a seamless and secure browsing experience on mobile devices.