Which of the following describes inputs in agriculture?

The correct choice effectively identifies inputs in agriculture as the resources necessary for production. Inputs are the essential elements that farmers and agricultural producers use to grow crops and raise livestock. This category includes items like seeds, fertilizers, soil amendments, water, and labor. Each of these components plays a crucial role in the agricultural process, as they directly affect the growth and yield of the crops or the health of livestock.

In contrast, finished products ready for sale encompass the end results of agricultural production, which is not what is referred to by the term "inputs." Revenues generated from sales pertain to the financial outcomes of agricultural efforts, reflecting the profitability rather than the resources used. Contributions made by employees, while important for the operation of an agricultural business, also do not classify as physical inputs into the agricultural production process. Therefore, identifying inputs as resources like seeds and fertilizers represents an essential understanding of agricultural production systems.