Answer:
D - Double depression.
Explanation:
Double depression is a complication of dysthymia. Dysthymia is a depressed mood accompanied by ore or two other symptoms of clinical depression. When a person is depressed for a long period of time, it's said that they are not only having depression but double depression given that the period of time "aggravates" the depression itself and has other symptoms such as low energy or low self-esteem.