Final answer:
OneAgent Diagnostics in Managed are retained for 30 days.
Step-by-step explanation:
The answer is c) 30 days.
OneAgent Diagnostics in the Managed environment are retained for 30 days. This means that diagnostic data collected by OneAgent, such as performance metrics, error information, and user action data, will be stored for a period of 30 days before being automatically deleted.
This retention period allows for historical analysis and troubleshooting based on the collected diagnostic data. After 30 days, the data will no longer be available for analysis.