Which of the following is practiced in North American Plains?

Correct option is B

The correct answer is: (b), commercial grain framing
Commercial grain farming involves the extensive cultivation of grains such as wheat, corn, rice, barley, and oats for sale in the market, focusing on profit generation rather than solely meeting subsistence needs. This type of farming typically employs modern agricultural methods and machinery to achieve high yields and efficiency."
Some notable areas known for commercial grain farming include:
Midwestern United States:
Canadian Prairies
Pampas Region
Eastern Europe
Australian Wheat Belt
Black Sea Region
Information booster:
Commercial dairy farming refers to the extensive production of milk and dairy products for commercial purposes. This type of farming entails the management of large herds of dairy animals, such as cows, goats, or buffaloes, and the implementation of modern agricultural techniques and technologies to optimize milk production.
Specialized horticulture involves the targeted cultivation of specific crops or plants, employing specialized techniques and expertise tailored to the unique requirements of those particular species.
Intensive subsistence tillage with a predominant focus on rice cultivation involves a farming approach centered around maximizing rice yields on limited land through meticulous tillage practices. Farmers rely on their labor and traditional techniques to sustain themselves in this system."