Answer:
(I don't see a chart but I'll give it a guess based on the info I have)
1. C. Sugar cane. Though all other options are true to some extent.
2. B. They all have a warm/tropical climate.
3. D. Brazil.
4. B most likely - can't guarantee.
5. Again, no chart, but probably D.
6. E? Or F is also a possibility.
I'm winging it here, so correct me if I'm wrong.