One of the Six Essential Aspects of Project Performance

C.

The six aspects of project performance that need to be managed are often referred to as the "project management triangle" or the "iron triangle." These aspects are interrelated and should be balanced to ensure the success of the project.

The six aspects are:

1. Scope - the goals, deliverables, tasks, and requirements of the project
2. Time - the duration of the project and the scheduling of tasks
3. Cost - the budget and financial resources needed to complete the project
4. Quality - the level of excellence, fitness for purpose, and customer satisfaction delivered by the project
5. Risk - the potential for uncertain or unexpected events that could impact the project negatively
6. Stakeholders - the people or groups who have an interest in the project or who are impacted by its outcome.

Of the options provided in the question, "Progress" is a subcategory of Time, and refers to the tracking and monitoring of the project schedule to ensure that tasks are completed on time, and that the project stays on track to meet its deadline.

"Change" refers to the management of changes that may occur during the project, such as changes to the scope, schedule, budget, or resources. This involves assessing the impact of changes, communicating them to stakeholders, and making adjustments to the project plan as needed.

"Risk" refers to the identification, assessment, and management of potential risks that could impact the project. This involves developing a risk management plan, monitoring and controlling risks, and taking corrective action when necessary.

"Security" refers to the protection of project assets and resources from unauthorized access, theft, damage, or other security threats. This can include physical security measures, cybersecurity measures, and risk management strategies.

In summary, while all of these aspects are important to project success, the six aspects of project performance that need to be managed are Scope, Time, Cost, Quality, Risk, and Stakeholders. Of the options provided, "Progress" falls under the Time category, and the other options are Risk and Security.