Answer: Both A and B
Step-by-step explanation: Carbon emission into the atmosphere is very dangerous for the living forms on the earth as it can cause various types of diseases.
The emission can be controlled by using various technology available today. But first people must know about the negative effects of carbon emission on them and other life forms.
When people will be aware of the fact that it must be controlled then only the people will follow the law which is helpful in reducing the carbon emission.
The government has passed many law regarding the reduction of carbon emissions.