Production function is the relation of

The correct answer is B. Input and Output.

A production function is a mathematical relationship that describes the maximum amount of output that can be produced from a given amount of input. The input can be labor, capital, or land, and the output can be goods or services.

The production function is a key concept in economics, as it is used to model the behavior of firms and to understand the factors that affect economic growth.

The following are brief explanations of each option:

• Option A: Cost and Profit. Cost is the amount of money that a firm spends on inputs, while profit is the difference between revenue and cost. The cost and profit of a firm are not directly related to the production function.
• Option B: Input and Output. The input and output of a firm are directly related to the production function. The input is the amount of resources that a firm uses, while the output is the amount of goods or services that the firm produces.
• Option C: Profit and Loss. Profit and loss are the difference between revenue and cost. The profit and loss of a firm are not directly related to the production function.
• Option D: Price and Demand. Price and demand are the two main factors that determine the quantity of a good or service that is demanded. The price and demand of a good or service are not directly related to the production function.