Answer:
D. the total volume of fossil fuels, fertilizer, fresh water, and other resources that are needed to provide the food
Step-by-step explanation:
Jamie's ecological footprint shall be determined by the volume of ecology affecting inputs used.
For instance, the amount of clean water to be used shall impact on the water supply given that clean water is a scarce resource.
Fertilizer affects the ecology negatively by draining harmful chemical compounds into the soil, so the lesser of this used, the better the ecological footprint she leaves.