As Part of a Patient's Treatment Plan, She Was Admitted

As part of a patient's treatment plan, she was admitted to the hospital for observation. This means that the

A) patient needs to undergo further tests before she can be diagnosed.
B) patient will be discharged with a prescription.
C) patient is admitted so that medical professionals can watch or keep an eye on her.
D) patient will be sent home to see if the symptoms get better on their own.
E) patient's symptoms resolved after her hospital stay.