You are setting up your Online Video ad campaign and want to plan your audience's engagement at every stage of the customer journey. Which of the following tools could you use?

The Audience planning tool is designed to help advertisers map out audience engagement across different stages of the customer journey, from awareness to consideration to purchase and loyalty. It allows for the strategic selection and layering of various audience segments to achieve specific campaign goals at each stage. Amazon Ad tag is used for tracking conversions and website activity, not for audience planning. Amazon Audiences refers to the collection of predefined audience segments available for targeting, but it's the Audience planning tool that facilitates the strategic application of these audiences throughout the customer journey.