D. Sugar Cane is no longer the main source of sweetness for most people
Explanation:
In the excerpt is clear that with the pass of the years that people have been craving sugar more than ever and they have been less aware of the source of the sweetness they eat daily, on a large variety of things like desserts and drinks. However, the excerpt also emphasizes on the fact that even though the sugar cane isn't the main source of sweetness on people's diet, it still represents a lot of hard, poorly paid job for many people in some countries.
