Which of the following statements are true?
A. People in tropical climates don’t have any vocabulary for heating system because they have no need for it.
B. People in cold climates don’t have any vocabulary for air-conditioning they have no need for it.
C. People living in the north of Germany know little about beer because beer is not important in this region.
D. People living in the south of Germany know a lot about wine because wine is important in this region.