Inez and Troy were just strolling through the mall when they saw a mattress with adjustable levels of firmness in a store window. Once they became aware that such a product existed, they were eager to talk to a salesperson and learn more about the mattresses. After talking to the salesperson for thirty minutes, Inez and Troy realized that they wanted to own one. They used their credit cards to order a mattress and to pay for its delivery. In terms of the models of response process, Inez and Troy have just gone through the stages in the _____ model.
A. AIDA
B. hierarchy of effects
C. innovation-adoption
D. adoption response
E. diffusion rate
Answer: A