Can you help me understand this Management question?

Identify the three primary ways to achieve competitive advantage. Provide an example, not included in our text, of each. Support your choices.

That is the tip: ALL students must contribute discussion and content to each Discussion Board. This does NOT mean typing “I agree with Sandy” and thinking that counts as your contribution. Read the case study, investigate the issue and contribute comments and information based on individual research and evaluation. We are looking for cogent and supportable statements contributing to the discussion. This discussion board will ONLY be available during this week.