#1
Earlier (<1990's) china's population was in explosive manner .
- China implemented one child policy to stop the population increase
Option D
#2
If we take 7.6 billion human existing till 2020 the. Japan can never have 6Billion ,
Yes Option B is correct
China and INd both represent countries with highest populations
Option C is wrong
D is somehow correct but not 100% as it's not shown on pie chart
