Answer:
c
shape like a straight line
The answer for the question above would be option D. Japan. The country that is considered as the leader in cracking down on the use of chlorofluorocarbons is JAPAN. Due to their advanced technology, they have also found ways on how to reduce the emission of chlorofluorocarbons. Hope this answers your question.
I believe that would be Mesopotamia, the seat of the Sumerian and Akkadian civilizations.
Source: Studied this last week. :)
