Based on the information provided, the best option that explains the spatial variations of rural women’s roles in food production and food preparation is Option A:
"In less developed countries, females tend to participate more than males in harvesting and less in preparation tasks. In more developed countries, females and males tend to participate equally in food-production tasks."
This option accurately reflects the trends observed in less developed countries where women often take on a significant role in agricultural activities such as harvesting, while potentially having a diminished role in food preparation tasks. In more developed countries, the data suggests a more equal distribution of roles between genders in food production tasks.