Routinized response behavior is characterized by:

Routinized response behavior refers to a purchasing process that involves low levels of involvement and decision-making effort. This type of behavior is typical for products that consumers buy regularly, where they have established preferences. Purchasing a specific brand without much thought accurately describes this behavior, as consumers often rely on past experiences and familiarity when making these routine purchases.

In contrast, the other options imply a higher level of cognitive processing. Extensive research and evaluation of options suggest a more thoughtful consideration, which is not characteristic of routinized response behavior. Switching brands frequently based on price indicates an element of price sensitivity and variability in choice, contradicting the consistency found in routinized behavior. Trying new products without prior knowledge reflects an exploratory approach, where consumers are open to new experiences rather than adhering to established routines.