Correct Answer: C

The correct answer is LinkedIn.

Key Points:

LinkedIn, the popular professional networking site with 800 million members worldwide, can be a powerful tool for professional development. First launched in 2003, LinkedIn is an online platform designed to create and strengthen business connections, regardless of field or location. Often compared to Facebook, which many use for professional purposes, LinkedIn focuses on connecting with other professionals instead of friends and family. LinkedIn is also a place many prospective employers go to learn more about candidates. LinkedIn offers a rich experience of features that allows you to deepen professional relationships.

Additional Information:

Facebook is an online social media and social networking service owned by American company Meta Platforms. Viber, or Rakuten Viber, is a cross-platform voice over IP and instant messaging software application owned by Japanese multinational company Rakuten, provided as freeware for Google Android, iOS, Microsoft Windows, Apple macOS and Linux platforms. Signal is a cross-platform centralized encrypted instant messaging service developed by the non-profit Signal Foundation and its subsidiary, Signal Messenger LLC.