Based on von Thünen’s model of rural land use, the correct explanation of the location of agricultural practice A or B relative to the market can be understood through the principles of land use and transportation costs.
Option A accurately characterizes Practice A as representing intensive land use, which requires a smaller parcel of land and can afford higher land costs found closer to the market. This aligns with von Thünen’s model, where intensive agriculture typically occurs nearer to the city or market due to higher land costs, as it makes use of smaller plots and requires more labor and resources, which is justified by the higher prices that can be charged for these goods closer to urban centers.
Conversely, Option B describes extensive land use, which is generally located further away from the market, as it requires larger areas of land and benefits from lower land costs. This type of agriculture is less labor-intensive and typically involves crops or livestock that do not require immediate market access (e.g., grain farming or cattle ranching).
Option C mentions that Practice B represents perishable products that require barns and stables and need to be close to the farmer's residence. This also fits with von Thünen’s ideas, as perishable goods must be located near the market due to their need for quick transport.
Option D states that Practice B represents intensive land requiring large amounts of labor and can afford higher land costs closer to the market; this contradicts the initial description of Practice B as extensive land use.
Lastly, the last option discusses Practice A as extensive land use that locates farther away for larger tracts of land, which does not accurately reflect von Thünen’s principles of agricultural location.
In summary, the best descriptions based on von Thünen’s model would be Option A for Practice A (intensive, closer to the market) and also consider aspects of Option C for Practice B (perishable goods needing proximity). However, the explicit description of Practice B as extensive simply meets the fundamental definition of extensive farming, placing it generally farther from the market.