ADDM for RAC can diagnose skew in response time, analyze performance using data captured on all instances, and diagnose latency problems in the Cluster Interconnect. It is designed to provide a holistic view of database performance across a RAC environment. Analyzing performance over any given time period (option A) is too general and not specific to ADDM’s functionalities, and ADDM does not just run on a single instance (option D). It does not automatically run in Instance ADDM mode after each AWR snapshot (option F).