Given the information in the chart, which of the following techniques should the project manager...

Crashing is the correct answer because the burndown chart shows that, during Sprint 1, the actual remaining work is above the planned line. This means the team is behind the expected schedule and has completed fewer user stories than planned. Crashing is a schedule compression technique used when a project manager needs to shorten the schedule by adding resources, increasing effort, or applying additional support to critical work. Validating is used to confirm that deliverables meet acceptance criteria, but it does not directly improve the schedule. Training may improve team capability over time, but it is not the immediate schedule compression technique shown by the scenario. Avoiding is a risk response strategy and does not address schedule recovery.