Verification Activity is the correct answer. This activity allows you to set criteria for an automation to run successfully or fail based on data counts or validation errors. For example, you can use a verification activity to check if the file size or the number of records in a file is greater than zero before processing it. This can help prevent empty files or data points from being imported or processed by your automation. Wait Activity is not a valid option, as this activity only allows you to pause an automation for a specific duration or until a specific date or time. Skip Automation is not a valid option either, as this option only allows you to skip an automation if it is already running when it is scheduled to run again. You can learn more about this in the Automation Studio Basics module on Trailhead.