What would lead to a high probability of errors

1. Which do you feel would lead to a high probability of errors and

biases in consumer decisions, Central or Peripheral processing? Explain your answer.
2. List and briefly define the 5 marketing concepts. Which ONE do you feel would an understanding of consumer behavior be most relevant and why?
https://www.youtube.com/watch?v=HzevRHUEnVI   (link to answer #2)