So the option a(input) is the correct answer.
Factors of production are also known as production inputs. Inputs are factors of production because they are the inputs used in the production of output (goods and services).
Factors of Production:
The inputs needed to produce goods and services in the economy are known as factors of production. The factors are land, labour, capital, and entrepreneurship. The resources required to supply a good or service, as determined by a country's gross domestic product, are one of the four components (GDP).
The term "production" in the context of factors of production refers to the process of transforming inputs into outputs, which are finished goods that may be sold as a good or service. To do this, the input will travel through a manufacturing process and different stages before reaching the hands of customers.
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