I know this might not help now but I think its D but I will let you know for sure in a minute or two
The last one is punctuated correctly.
A. Purpose
I believe this is purpose because she is writing to argue that distributing medicine to rural parts of the world was worth doing.
A, In Fact, studies by scientists have found......
In fact followed up by an actual factually proven statement!
1. Do you like dancing?
2. Would you like to dance
3. Would you like some more food?
4. Would you like a glass of water?
5. Do you like living in Australia?
6. Would you like to go to the movie with me?
7. Would you like more sugar for your coffee?
8. Do you like drinking coffee?
9. Would you like to have some coffee?
10. Do you like your job?