Which of the Following Best Describes the Category of Depressed

Which of the following best describes the category of depressed mood?

A) A temporary period of sadness, without any related symptoms
B) A more enduring period of sadness along with other symptoms such as frequent crying, feelings of worthlessness and feeling guilty, lonely or worried
C) Includes all the symptoms of depressive syndrome, plus other symptoms such as difficulty sleeping and changes in appetite
D) A feeling of being wound-up, tense or restless; difficulty concentrating; and a high rate of irritability