The correct answer is D .
This is a VUCA-based risk because the primary driver of the problem is external market fluctuation in material costs . In AgilePM, VUCA-based risks come from volatility, uncertainty, complexity, and ambiguity in the wider environment rather than from misuse of the method itself.
Here, the overspend is happening because supplier estimates have been overtaken by changing market prices , which is an external factor outside the direct control of the project team. That fits VUCA very well, especially the volatility element.
Why D is correct:
Material prices are influenced by external market conditions.
Those conditions can change after planning estimates are made.
The resulting budget pressure is therefore caused by environmental uncertainty, not primarily by a flaw in AgilePM practice.
AgilePM expects teams to stay responsive when such external conditions shift.
This means the project should now inspect impact, reassess options, and adapt delivery decisions accordingly.
Why the other options are incorrect:
A. Approach-based, because cost estimates weren ' t properly validated or reviewed in the Foundations phase leading to inaccuracies.
This could be true in some situations, but the scenario points to material costs exceeding initial supplier estimates , which strongly suggests a market-driven change rather than simply poor validation. The main source of risk is external cost movement.
B. Approach-based, because Agile avoids detailed early planning to focus on iterative development, making estimates vague.
This is incorrect and reflects a misunderstanding of AgilePM. AgilePM does not mean careless estimating. It balances planning with adaptability and does not make estimates vague by default.
C. VUCA-based, because internal constraints prevent Delivery Teams adjusting budgets to external changes.
This is weaker than D because it focuses on internal budget adjustment constraints rather than the actual source of the risk. The question is asking what type of risk is impacting the project, and the most direct cause is the external fluctuation in material costs.
AgilePM perspective:
AgilePM recognizes that projects operate in changing environments. External price movements are a classic case where teams must:
reassess financial impact,
review priorities,
explore alternatives,
and make informed trade-offs while protecting business value.
Since the risk comes from unpredictable external market conditions , the correct classification is VUCA-based .
Therefore, the best answer is D .
