Consumer behavior refers to $...$

the mental and social processes related to purchasing that are innate in a person from birth.

the actions a person takes in purchasing and using products and services, including the mental and social processes before and after them.

he five stages a buyer passes through in making choices about which product and service to investigate, purchase, and consume.

he aspects of a consumer's decision$-$making processes that cannot be measured.

those purchasing behaviors that result from repeated experience and reasoning.