Emerging trends in technology are impacting business outcomes with respect to optimization and innovation. Which are the big four emerging trends?

'Industry Issues' and 'IT Appliances' are not typically categorized as core emerging technology trends in the same way as the others.

'Activity Based Working' is a workplace strategy, not a core technology trend, and 'Security' is an underpinning concern rather than a standalone emerging trend in this context.

While 'Software Defined Networking' and 'Big Data' (often encompassed by Analytics) are important, this specific combination is not generally identified as the 'big four' compared to option D.

Cloud computing offers scalable infrastructure, Mobility enables ubiquitous access, Analytics provides data-driven insights, and Social Media fosters engagement; these four are widely recognized as foundational and interconnected trends impacting modern businesses.