The project is in stage 3.

PRINCE2’s learn from experience principle requires that lessons are sought, recorded, and applied throughout the project lifecycle. PRINCE2 explicitly states that projects should “seek lessons from previous projects and from current experiences” and apply them proactively to improve outcomes.

In this scenario, the construction team lacks experience with a specialist technique. Instead of proceeding blindly, the Regeneration Manager arranges a visit to another site where the technique is already in use. This is a textbook example of learning from external experience and applying proven practices to reduce risk, uncertainty, and inefficiency.

Option A correctly reflects this principle. Option B is incorrect because PRINCE2 clearly states that lessons are not limited to the start of the project; they must be sought continuously. Options C and D incorrectly invoke manage by exception, which applies when tolerances are forecast to be exceeded—not when proactively reducing risk through learning.