Final answer:
Extensive decision-making is characterized by spending lots of time and effort searching, comparing alternatives, and having a good idea of the brand in advance.
Step-by-step explanation:
When a consumer spends lots of time and effort searching, comparing alternatives, and has a good idea of the brand in advance, this is characteristic of extensive decision-making. Extensive decision-making refers to a complex decision-making process that involves extensive information search and evaluation of alternatives before making a decision. It is commonly observed when consumers are purchasing expensive or high-involvement products.