The option that describes how humans can create a sustainable system is : ( B ) Using the waste and byproducts of livestock to help create more arable land for crops
To balance the meat system and the green system, the systems should be interdependent on each other, that way excessive waste will be reduced and both systems will gain mutually. One way to achieve this collaboration is the use of waste products from livestock as manure to create more arable land which in turn will lead to better crop production.
Hence we can conclude that The option that describes how humans can create a sustainable system is Using the waste and byproducts of livestock to help create more arable land for crops.
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