It depends what your arugment is i would support with several facts a opening saying the question and your argument body details supporting your argument and a closing kinda repeating the beginning hope this helped
Both stories praise the ideal of family and express idea of inportance of a family in people's lifes and. So, The authors of Desert Exile and The Way to Rainy Mountain both express idea C. Family is more important than country. Problem of family vs country is very common, and those authors develop it during the whole story.
The answer is C. It first discusses the world as a whole and then narrows down to specific examples of countries in need.
Its C Their because their is the only option refering correctly to the sentence. Read the sentence out loud with option C and you will "C" that it is correct lol