The correct answer is letter A
This means that, from now on, all resources used for survival (water, mining, oil extraction, animal consumption, planting food with soil depletion, among other points) will enter a kind of "negative credit" for Humanity.
The depletion of these sources can lead to a mass extinction, in which 75% of the planet's species will simply cease to exist. The misuse of these resources - which includes oil, coal, natural gas, minerals, water and food - already has visible consequences.