Using software to enroll every person who downloads a specific ebook into a month-long email campaign is an example of what?

Explanation: The correct answer is **Marketing automation**. Marketing automation refers to the use of software and technology to streamline, automate, and measure marketing tasks and workflows, with the goal of increasing operational efficiency and growing revenue. In the given scenario, the process of enrolling every person who downloads a specific ebook into a month-long email campaign is automated through software. This automation eliminates the need for manual intervention to enroll individuals into the campaign, ensuring that all leads who engage with the ebook receive timely and relevant follow-up emails without requiring manual effort from marketing personnel. By leveraging marketing automation, businesses can scale their marketing efforts, nurture leads more effectively, and provide personalized experiences to their audience, ultimately driving engagement, conversions, and revenue growth. Therefore, using software to automate the enrollment process exemplifies the concept of marketing automation in action.