Answer:
D. Have dramatically slowed desert growth
Step-by-step explanation:
Combating desertification can be a very effective initiative that has the potential to drastically reduce the growth of a desert, but it is important that governments and citizens dedicate themselves in an intense and constant way so that desertification is actually combated. In this case, it is important that the whole nation dedicates itself to practicing some tactics such as rainwater harvesting, good agricultural practices, sustainable exploitation, reducing the emission of polluting gases, reducing deforestation, combating environmental pollution, proper disposal of garbage, among other attitudes, that will protect the environment and prevent the advance of the desert.