The importance of reforestation from the following:

The correct option is A Only A
Importance of afforesatation are given below:
Afforestation helps the wild animals and even humans to have shelter and to find their food source.
• Through afforestation we can increase the supply of oxygen. Trees planted can increase the water vapour in the atmosphere to get the rainfall.
• By planting trees the amount of carbon dioxide in the atmosphere can be reduced and thus the effects of air pollution, green house gases and global warming can be controlled.
• Afforestation enables us to avoid desertification of land.