I'd say probably C
Hope this helps!
Getting sleep is important because without it you could drained or you could make careless mistakes and it can also cause your body to weaken so true
Assertive people would have all of these attributed except having respect for others - C.
Although even this answer perhaps couldn't be considered true because assertive people can have a positive attitude and respect towards other people it's just that in their case they respect themselves more and have a more positive view of themselves as well.
I believe that this would be deforestation because the trees' roots keep the soil in place whereas if they were gone the soil would be loose.
