I think they plan a Special Learning Plan or for short an S.L.P
I think the mother figure because the amount of responsibilities put on her and the amount of care need from a mother.
It builds and repairs tissues.
There is a very simple difference between the two. Occasional sadness can be considered as normal since these occur due to being lonely or due to stress and having problems in your daily life. In the case of clinical depression, the patient tends to experience sudden episodes of sadness and emptiness. Depression can be treated medically, while sadness can only be lifted depending on the person's life situation and mindset.