Explanation:

- Internet and Mobile Technology: ? Correct Answer. This combination has drastically changed global communication by making it instant, accessible, and cost-effective. It has connected the world like never before.

- Satellite Connectivity: While important, it mainly supports communication infrastructure and is not solely responsible for the revolution in everyday global communication.

- Traditional Postal Services: Once a crucial method for communication, it has largely been overtaken by digital alternatives in terms of speed and ease.

- Growth of Social Media: While pivotal, social media is an extension of internet technology and depends on it to work.