Answer: c- A 100-acre field, all of which is planted with the same variety of corn.
Step-by-step explanation:
Monoculture in agriculture practice can be defined as the practice of producing or growing a single kind of crop, livestock species, plant or breed in a field of farming. Annually planting the same kind of crop over the same agriculture field is likely to deplete the nutrients from the earth on which the plant relies upon. The soil becomes weak and unable to support the growth of crops.
C. is the correct option this is because the entire agriculture field is utilized to grow the same kind of crop that is the same variety of all corn plants.