Final answer:
The most effective way to help a team create ground rules is to use all of the above techniques mentioned in the options: 1) use the nominal group technique to brainstorm ideas, 2) use brainstorming techniques to generate ground rules, and 3) brainstorm ideas using some basic concepts.
Step-by-step explanation:
The most effective way to help a team create ground rules is to use all of the above techniques mentioned in the options: 1) use the nominal group technique to brainstorm ideas, 2) use brainstorming techniques to generate ground rules, and 3) brainstorm ideas using some basic concepts. Each of these methods has its own advantages and can contribute to creating comprehensive and inclusive ground rules.