Answer:
office memorandum.
Step-by-step explanation:
An office memorandum is a written message used as a means of communication of policies, decisions or procedures issued by an appropriate authority to another within the same organization.
Simply stated, an office memorandum is used to issue instructions or for communicating an action or decision reached by the executive arm of an organization to another, such as subordinates within the same organization.
In this scenario, if Vice President Kim must tell Phuong that Phuong's employment ends within two weeks. The best channel of delivering this message is through the use of an office memorandum.
The office memorandum typically states the sender and who the recipient is in its header.
Also, the purpose of the memorandum is often stated with a declarative sentence of the subject matter.