Seo-yeon is beginning to wonder if she has made the right decision about purchasing a new hp laptop after she sees a friend with a new dell. seo-yeon's doubt whether she made the right decision occurs during the of the buying decision process.

a. cognitive dissonance phase
b. purchase phase
c. evaluation of alternatives phase
d. information search phase
e. postpurchase evaluation phase

E. postpurchase evaluation phase

Explanation:

Post-purchase behavior occurs when the consumer has bought the product and is now evaluating if they re satisfied or dissatisfied with their purchase. This will determine whether the customer will go for the same brand of that product again or not.

Post-purchase behavior is the final stage in the consumer decision , this will so have an influence on influencing other potential customers as the customer is likely to share their feeling about the product they bought.

Cognitive dissonance occurs too at this stage when the customer is filed with conflicting feelings and remorse or tension , when the customers start to question themselves about their purchase decision.