Concept:Explicit costs are actual cash payments made by a firm to acquire inputs such as raw materials.
Explanation:A company's spending on raw materials is an out-of-pocket cash outflow.
This is an example of an explicit cost, not an implicit cost.
Implicit costs involve no direct cash payment; they are opportunity costs.
Prime cost refers to direct materials plus direct labour, so it is not just raw material spending.
Average cost is the total cost divided by output.
Therefore, the correct answer is explicit cost.
Answer:B. Explicit cost