What is the primary purpose of advertisers leveraging planning solutions and tools in their ad campaigns?

The correct answer is To gain insight on their brand's audiences because the primary purpose of leveraging planning solutions and tools in ad campaigns is to understand the behaviors, preferences, and characteristics of the brand's target audience. This insight allows advertisers to tailor their marketing strategies and messaging effectively, ensuring that their campaigns resonate with potential customers. While enhancing product visibility and expanding market reach are important objectives, they are secondary to the foundational goal of audience understanding, which drives more informed and impactful advertising decisions. Therefore, gaining insight into the brand's audiences is essential for creating successful ad campaigns.