Jack has experienced recurrent episodes of major depressive episodes. in the intervals between the episodes, he does not seem to return to "normal." in fact, during those periods, he has been diagnosed as having the symptoms of persistent depressive disorder (dysthymia). jack's condition is referred to as .a. bipolar ii disorderb. bipolar i disorderc. depression with intermittent onsetd. double depression

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.

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