An agile project manager notices the team has lost momentum over recent iterations. Which two tools should be used to analyze team performance? (Choose two.)

A burndown chart tracks remaining work against time, clearly showing if the team is on track to complete the iteration's scope. A flattening line indicates a loss of momentum. A cumulative flow diagram (CFD) visualizes workflow, showing work in progress, completed work, and lead times. A widening gap between the "in progress" and "completed" lines, or a flattening "completed" line, signifies a slowdown or bottleneck, indicating lost momentum. The product backlog burnup chart tracks overall project progress, not iteration-level momentum. A WBS defines scope but doesn't track performance. A project schedule tracks planned activities but isn't an agile performance metric for team momentum.