32 yo white male has CC of feeling depressed his entire life. He says that he is still able to function, but he says he never feels really good for more than a wk or two at a time. He denies SI/HI (suicidal / homicidal ideation). He denies any psychosis. He reports his self esteem is chronically low. What is his DX?

a. Major depressive disorder
b. Adjustment d/o
c. Cyclothymia
d. Bipolar I
e. Bipolar II
f. Dysthymia
g. seasonal affective d/o