Answer&Explanation:
Rehabilitation specialists are health experts who specializes in helping patients gain back their strength and former lifestyle after they have experienced a traumatic incident,injury or substance.
They are trained healthcare specialist who help recovering patients through counselling or physical therapy.
Rehabilitation specialist undergoes certain trainings where they go to seminars which focus on psychiatric rehabilitation, recovery,trauma,substance abuse and cultural competence.
To make officially valid or consent to.
I think the answer is an indemnity
They are likely to reason out that the third world nations are undeveloped because of their lack of modern economic activities and they are not well introduced to new techniques or machines that have made them to lack and to be underdeveloped than other world nations.