Final answer:
In a brainstorming session, the main goal is to generate as many ideas as possible without evaluating them right away.
Step-by-step explanation:
In a brainstorming session, the main goal is to generate as many ideas as possible without evaluating them right away. This allows for a wide variety of ideas to be explored and considered. Evaluation and selection of ideas should be done after the brainstorming session. Therefore, the correct answer is (b) come up with as many ideas as possible.