Correct Response: C. Self-image is how an individual sees him- or herself in society. It involves things such as body image and personality. It can also include a person's role in society, such as student, parent, or family member. In the advertisement, marketing professional are appealing to an idealized version of self-image to influence buying behavior. Social network (A), or reference group marketing, involves understanding how peers and friends influence purchasing decisions. Marketing to subcultures (B) involves appealing to a person's religion, ethnic background, geographic region, language, etc., to sell products. Life cycle marketing (D) deals with how consumers interact with a given brand. The stages of life cycle marketing include awareness of the brand, engagement (purchasing), retaining the customer, building customer loyalty, and encouraging customer advocacy of the brand.