Which of these demands is most closely linked to an increase in the incidence of obesity and diabetes? a. demand for cheap, processed food b. demand for fresh produce year-round c. demand for a meat-based diet d. demand for organic fruits and vegetables

Option A, Demand for cheap, processed food

Explanation:

Processed food that are cheap are made up of cheap raw material which are unhealthy for mankind. Almost all the processed snacks are made up of  high sugar content corn syrup, sugar, corn, triglyceride oils, preservatives, coloring agents etc. Also distribution of processed food is easier than any other food item specially the perishable items such as vegetables, fruits and meat which make them (processed food) easily available everywhere.  

With high market intrusion, easy availability, low rates and processed tastes, the consumption of processed food will increase and this will cause health problems such as obesity , cholesterol, diabetes etc..  

not sure if this is what you'r looking for nnew= nold

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.