According to the text, what is the definition of depression given by the author? I- Depression is a mental disorder that can be diagnosed through ...

According to the text, what is the definition of depression given by the author?

I- Depression is a mental disorder that can be diagnosed through clinical criteria.
II- Depression is a crack in love that degrades the person and eclipses the ability to give and receive affection.
III- Depression is a feeling of insignificance that arises from the lack of love.
IV- Depression is a disorder that can be cured with medication and therapy.
a) Only I and IV are correct.
b) Only II and III are correct.
c) Only II and IV are correct.
d) Only I, II, and III are correct.