A software development project uses an adaptive approach with six phases.

At the end of the second phase, the project goes behind schedule. The finish-to-start relationship between activities of the development and testing team is causing the delay. The testing team can only start after the development team's work gets completed. After discussion with experts, the development team decided to adopt a test-driven development approach for some user stories, where testing and development can go in parallel.

Here, the adoption of test-driven development is an example of:

A. Resource leveling B. Fast tracking C. Crashing D. Schedule optimization Answer–B.