Here are the answers:
1. D
2. C
3. A
4. B
5. C
6. Awaiting confirmation
7. A
8. A
9. B
10. C
11. C
12. B
13. D
14. C
15. D
16. A
17. A
18. D
19. D
20. B
I got 18 or 19 depending on whether marketing approach is right.
Q20 is definitely B. Aus. producers selling wine are affected because NZ is less inclined to buy it because it's now more expensive, due to the rise of the Aus. dollar.
I'm still yet to be convinced on 6. I put marketing.