Answer:
D - mitigation strategy.
Explanation:
Carbon off-setting is a mitigation strategy . Carbon off setting is the reduction in emission of carbon dioxide . It helps to compensate emission made somewhere else . Through this we can mitigate the climate change . Actually it is a trade where you can buy an offset that means you are funding a project that reduce greenhouse gas emission . But people who buy offset live in developed nation and in these nations lowering carbon emission is a difficult work to do .
