Comprehensive and Detailed In-Depth Explanation:

Activity areas in SAP EWM group bins for specific activities (e.g., picking). Option B ("Storage bins from different storage types can be assigned to the same activity area") is correct because bins from multiple storage types (e.g., high rack, bulk) can share an activity area, configured in SPRO: SCM Extended Warehouse Management > Master Data > Activity Areas > Assign Storage Bins. Option C is incorrect as bins can belong to multiple activity areas for different activities. Options A and D are not mandatory requirements.