Final answer:
The extension aspect of a group support system (GSS) reduces communication barriers and introduces order and efficiency into unsystematic and inefficient situations.
Step-by-step explanation:
The correct answer is extension. The extension aspect of a group support system (GSS) reduces communication barriers and introduces order and efficiency into situations that are inherently unsystematic and inefficient. GSS is a computer-based system that helps groups collaborate and make decisions. It provides tools that assist with communication, information sharing, and decision-making processes. The extension aspect facilitates the integration of different communication media, such as text-based messages and audio/video conferencing, to enhance group communication.