Final answer:
The most likely disorder Donald has is Bipolar Disorder.
Step-by-step explanation:
Based on the information provided, it is difficult to determine which specific disorder Donald likely has. However, of the options given, the most likely disorder is Bipolar Disorder.
Bipolar disorder is characterized by dramatic shifts in energy and mood, which can greatly affect an individual's ability to carry out day-to-day tasks. The disorder is known for its manic and depressive episodes. Although further evaluation would be needed to make a definitive diagnosis, the description of Donald's symptoms aligns more closely with the characteristics of Bipolar Disorder compared to the other options.