Which of the following is a ground rule for brainstorming?

In brainstorming sessions, establishing ground rules is essential for fostering an open and creative environment. One key ground rule is that no criticism of an idea is allowed. This principle is crucial as it encourages participants to share their ideas freely without fear of judgment or rejection. Allowing criticism can stifle creativity and deter individuals from contributing ideas that may seem unconventional or unrefined at first. By ensuring that all ideas are welcomed and considered, even those that may not be immediately practical or feasible, the group can tap into a broader range of perspectives and insights, potentially leading to innovative solutions.

The other options contradict the collaborative and open nature of brainstorming. Focusing solely on practical ideas can limit creative thought and discourage imaginative concepts that may eventually inspire practical solutions. Limiting the ideas to just a few selections restricts the flow of ideas, which is counterproductive to the goal of generating a wide array of potential solutions. Finally, discussing each idea thoroughly before moving on can slow down the brainstorming process, hampering the spontaneity and volume of ideas that is fundamental to effective brainstorming. The core aim is to build a diverse set of ideas first, which can later be filtered and refined through discussion.