A consultant is rolling out AI-based opportunity scoring for a client whose sales team only started using Dynamics 365 Sales three months ago and has fewer than 40 closed opportunities logged in the system. During testing, the opportunity scores appear inconsistent and do not clearly separate strong deals from weak ones. What is the most likely root cause?

The correct answer is B. Predictive opportunity scoring is a machine learning capability that learns from an organization's own history of won and lost deals, and it needs a meaningful volume of closed opportunities to identify patterns that reliably distinguish strong deals from weak ones. With only three months of use and fewer than 40 closed records, the model has too little training data to produce consistent, differentiated scores, which matches the inconsistency observed in testing. Option A is incorrect because opportunity scoring does not require a minimum number of custom fields; it works with standard and available opportunity data and does not gate activation on schema customization. Option C is incorrect because a security role restriction would typically block record access entirely or cause errors, not produce scores that are merely inconsistent, and there is no indication in the scenario of an access failure. Option D is incorrect because browser compatibility issues would affect the rendering of the score on the form, not the underlying calculation, and would not explain a lack of separation between strong and weak deals.