You're answer would be A.
There are many answers:
Could be:
reciprocity - just what Confucius said.
love
hardworking
generosity
kindness
loyalty
honesty
especially HOPE and FRIENDSHIP
Answer:
It's either C or D
Explanation:
The Industrial Revolution saw the rise of factories in need of workers. Children were ideal employees because they could be paid less, were often of smaller stature so could attend to more minute tasks and were less likely to organize and strike against their pitiable working conditions.
The Kyoto Protocol required only developed countries to reduce emissions, while the Paris Agreement recognized that climate change is a shared problem and called on all countries to set emissions targets. So the answer is 4. Combating climate change and holding each other accountable for greenhouse gas emissions.