You create a weekly report app as a canvas app. The data source for the app is a Microsoft SharePoint list. The file that contains the weekly report must be attached to each submission made in the…

The "When an item is created" trigger would only fire for the initial submission of the report, not for subsequent modifications.

The "When an item or file is modified" trigger in SharePoint Power Automate connector is the correct choice because the scenario explicitly states that employees "modify the report through the canvas app after the initial submission" and the manager needs to be notified upon these updates. This trigger fires for changes to both list items and files within a SharePoint list or library.

The "When a file is created (properties only)" trigger would only fire when a new file is added, not when an existing report file is modified.

The "When a file is created in a folder" trigger is similar to option C, only firing for new file uploads and not for updates to existing files.