Final answer:
The correct answer is c. Responsibility assignment matrix. A RACI chart is a project management tool used to clearly define roles and responsibilities associated with project tasks, to ensure clarity and effective delegation within the team.
Step-by-step explanation:
A RACI chart is a type of c. Responsibility assignment matrix. It is a tool that is commonly used in project management to map out every task, milestone, or key decision involved in completing a project, and assign which roles are Responsible, which are Accountable, which should be Consulted, and which will be Informed. The primary purpose of a RACI chart is to clarify the roles and responsibilities of everyone involved in a project to ensure that everyone knows what they are supposed to do and who to communicate with.
Contrary to other options listed such as a project organizational chart which outlines the hierarchy of project roles, a resource histogram which is a graphical representation of the allocation of resources over time in a project, or a project dashboard which provides a high-level view of project status and metrics, the RACI chart specifically deals with defining roles and delegations of authority in a project setting. Hence, correctly utilizing a RACI chart can help eliminate confusion and make project management more effective.