A typical episode of major depression last __________, with very severe cases lasting as long as ...

A typical episode of major depression last __________, with very severe cases lasting as long as severalyears.
 
  a. 3 months
  b. 6 months
  c. 9 months
  d. 1 year

Question 2

Mood disorders can take on many forms; one of the most severe, involving repeated episodes of extremely low mood,is referred to as
 
  a. major depressive disorder.
 b. Persistent depressive disorder
  c. cyclothymia.
 d. melancholia

Question 3

Mood disorders refer to a group of disorders involving severe disturbances ranging from __________ to ____________
 
  a. Hallucinations; suicidality
 b. Elation; depression
 c. Indecisiveness; anhedonia
 d. Left; right hemispheric EEG abnormality