Which of the following best describes the concept of 'viral HR'?

The concept of 'viral HR' is primarily characterized by the use of social media and online platforms to enhance human resources practices, especially in recruitment. This approach leverages the natural sharing capabilities of social media to create a buzz around job opportunities and promote employer branding.

While the integration of technology for employee self-service is an important aspect of modern HR practices, it does not encapsulate the essence of 'viral HR'. Viral HR primarily focuses on the viral nature of information sharing facilitated by social media channels, which can rapidly spread job openings and increase engagement with potential candidates.

The other options, such as establishing virtual meetings and implementing cloud-based payroll systems, are relevant to modern HR practices but do not specifically capture the 'viral' aspect that is central to the concept. Hence, the correct answer highlights the integral role social media plays in transforming HR functions into viral content that resonates with a wider audience.