GDSS are most useful for which of the following tasks?

The correct answer emphasizes the strengths of Group Decision Support Systems (GDSS) in facilitating collaborative tasks such as idea generation, tackling complex problems, and supporting large groups.

GDSS are specifically designed to enhance group interactions and decision-making processes. They provide tools and frameworks that allow participants to brainstorm effectively, encouraging creativity and participation from all members. In situations where complex problems exist, GDSS help structure the thought process, allowing groups to analyze different perspectives and arrive at well-informed decisions. Additionally, they are particularly beneficial in managing discussions among large groups, streamlining communication, and ensuring that every voice is heard.

In contrast, while the other options might suggest valuable tasks for GDSS, they don't capture the full potential of these systems in the context of group dynamics and problem-solving. For instance, session planning, while useful, does not necessarily highlight the collaborative nature of GDSS. Instead, their true value lies in enhancing the generation and development of ideas, particularly when tackling intricate issues that require the input of varied viewpoints.