Which strategic relationship is being sought by these two companies?

A functional relationship typically involves interactions between departments or teams within an organization rather than between separate companies. This type of relationship focuses on operational efficiency and interdepartmental collaboration, which does not align with the strategic goal of marketing partnership between two distinct companies.

A joint research and development agreement focuses on collaborative efforts to innovate or develop new products, technologies, or services. While beneficial, this arrangement is primarily centered around R&D activities rather than marketing initiatives, thus not fitting the context of the question about a strategic relationship for promoting products.

A transactional relationship is characterized by short-term exchanges or interactions that typically do not involve a significant commitment or strategic collaboration. This type of relationship is more focused on immediate transactions rather than the long-term strategic marketing efforts sought by the two companies in question.