Final answer:
Intensive farming often results in cheaper food production due to economies of scale, even though it does not ensure animal health or the mitigation of environmental and ethical concerns.
Step-by-step explanation:
Among the options provided, the best answer for the benefit of intensive farming is that the food produced on intensive farms is typically cheaper than that on open ranges.
Intensive agriculture, as opposed to extensive cultivation, applies various methods repeatedly to the same plots to generate much greater yields. While this can lead to larger populations being supported due to increased food production, it does not guarantee the health of animals or the absence of environmental and ethical issues. Cheap food production is often due to the economics of scale and reduced per-unit costs in an intensive system.