Matthew recently purchased a new laptop for $1,500. He subsequently saw an advertisement for what appeared to be a similar model being sold for only $1,350. In order to resolve his ________, Matt decided that the cheaper model must not have as many attractive features as the model he purchased. Which of the following shall fill in the blank?

Select one:

a. subjective norm

b. indirect experience

c. attitude formation

d. situational influence

e. post-purchase dissonance