Answer: Sponsoring organization
Explanation:
Sponsoring organization is one of the entity which is basically responsible for sponsoring the various types of projects in an organization by proving the funding and the resources related to the project.
It is also known as the non profitable organization which directly dealing with the project problems or issues.
According to the question, when the document does not define any type of author and then it basically determine the sponsoring organization of that specific project document.
Therefore, Sponsoring organization is the correct answer.
