A risk treatment plan is a document that outlines the approach and actions to be taken to address the unacceptable risks identified in the risk assessment process1. A risk treatment plan should include the following components2:

The risk identification number and description

The risk treatment option chosen (e.g., avoid, reduce, share, or accept)

The risk treatment owner, who is responsible for implementing and monitoring the risk treatment

The risk treatment actions, which are the specific tasks or steps to be performed to execute the risk treatment

The risk treatment resources, which are the human, financial, or technical resources required to support the risk treatment

The risk treatment target date, which is the deadline for completing the risk treatment

The risk treatment performance indicators, which are the measures to evaluate the effectiveness and efficiency of the risk treatment

The risk treatment status, which is the current progress or outcome of the risk treatment

Among the four options given, the most important component in a risk treatment plan is the treatment plan ownership. This is because the treatment plan ownership defines theaccountability and authority for the risk treatment, and ensures that the risk treatment actions are carried out as planned and reported as required3. The treatment plan ownership also facilitates the communication and coordination among the stakeholders involved in the risk treatment, and enables the escalation and resolution of any issues or challenges that may arise during the risk treatment process4.

References = Risk Treatment (With Examples), ISO 27001 Risk Assessment & Risk Treatment: The Complete Guide, Risk Management Framework - Treat Risks, Risk Management Plan Components