According to the text, what are the criteria for diagnosing major depression?

Being sad, apathetic, irritable or indifferent most of the time.
Sleep disorders (insomnia or hypersomnia).
Loss of appetite or increased desire to eat.
Fatigue, agitation or motor slowness.
Inability to make decisions, lack of concentration, loss of interest in pleasurable activities.
Feelings of guilt or shame, thoughts of death.
a) I, II, III, IV, V and VI are correct.
b) I, II, III, IV and V are correct.
c) II, III, IV, V and VI are correct.
d) All statements are correct.