Match the following specific use cases, discussed across the nine concept cards, with the business stage at which they become most relevant:
- Use Case I: Real-time user experience personalization based on AI-driven insights.
- Use Case II: Basic website user engagement tracking such as page views and session duration.
- Use Case III: Comprehensive multi-channel attribution analysis for marketing efforts.
- Use Case IV: Automated segmentation and personalized communication in multi-channel marketing.
Select the correct business stage for each use case.