Answer:
D) Why do her friends have to be mailed abroad?
Explanation:
Another way of asking the question, "Why does she have to mail her friends abroad?' is option D which says, "Why do her friends have to be mailed abroad?"
This is because, they are both saying (or asking) the same thing which is to ask why her friends have to be mailed abroad.
Could you list the possible answers? Until then, I think a 'metaphor' would fit in there.
Graph is the best way to test results u can right then down for each time and compare them to the numbers on the graph