Benefits of a strong core include greater body control during movement more efficient exertion of power more effective metabolism and digestion greater flexibility of the lower body

I believe it is A, greater body control during movement

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.