Final answer:
This partnership between Trix and Yoplait to create a yogurt targeted to children exemplifies a co-branding strategy, leveraging the strength of both brands.
Step-by-step explanation:
The partnership between Trix cereal and Yoplait yogurt to create a product targeted to children is an example of a co-branding strategy. Co-branding is a marketing strategy where two or more brands collaborate on a product or service in order to leverage the strength of each other's brand equity and expand their reach to new customers or markets. In this case, Trix brings its well-known cereal brand appeal and Yoplait contributes its expertise in yogurt, aiming to attract children who are familiar with Trix to try a new yogurt product with flavors or themes associated with the cereal. This can provide a new experience for consumers and may generate additional sales for both companies.