Explanation:

Marketing Cloud Account Engagement allows up to 50 scoring categories. Scoring categories enable marketers to break down prospect scores into specific interest areas, such as products or services. This enhances lead qualification and segmentation. While default scoring offers a single score, categories give nuanced insights. Exceeding the limit isn't possible, so strategic planning is necessary. Answer D is correct based on system limits, making it important to prioritize which interactions are most valuable when assigning scoring categories across the platform.