Final answer:
After verifying an incident, the best response is to report it. This step is crucial as it initiates the incident response process, allowing for containment, evidence collection, and remediation.
Step-by-step explanation:
The best response after detecting and verifying an incident is B. Report it. Reporting the incident should be done promptly to ensure that the appropriate parties are informed and can take the necessary steps to address the situation. Once the incident is reported, containment strategies can be applied to prevent further damage, evidence can be gathered for forensic analysis, and eventually, remediation efforts can begin to resolve the issue. Reporting is a critical step in any incident response process as it triggers the formal response and ensures all actions are coordinated and tracked appropriately.