What should Mariela do to ensure her stakeholders view only relevant tasks?

Creating a filter for active tasks is the most effective way for Mariela to ensure her stakeholders only see relevant tasks. This approach allows her to customize the view of the project in Smartsheet, displaying only the tasks that are currently active and hiding those that are completed or irrelevant at the moment. Filters in Smartsheet can be easily applied and adjusted, enabling Mariela to tailor the information presented based on the needs of her stakeholders and ensure they remain focused on current priorities without distraction from past tasks.

While changing row colors based on task status can provide visual cues about the progress of tasks, it does not restrict visibility to only relevant tasks. A summary email is helpful for communication but does not directly manage view access to the Smartsheet. Lastly, removing access to completed tasks would not be an appropriate action to take, as it may hinder stakeholders from having a full understanding of the project's history and context when they need to refer back to completed tasks for reporting or review.