An iteration is almost complete, but the team is struggling to finish stories that require more time. What should the project manager do first?

The correct first step is to meet with the team to develop an appropriate resolution. In agile environments, the team is self-organizing and best positioned to identify solutions to challenges like unfinished stories. This collaborative approach fosters ownership and leverages collective expertise. Requesting sponsor approval to add resources is premature; the team might find an internal solution first. Preparing documentation and communicating the issue is also premature; a solution should be sought before formally reporting. Updating project artifacts to reflect revised deadlines is a consequence of a decided resolution, not the first step in addressing the problem.