Final answer:
Electricity cost for a manufacturing plant is likely to have a mixed behavior pattern with fixed and variable components, depending on both the base connection fee and usage related to production activities.
Step-by-step explanation:
An example of a cost likely to have a mixed behavior pattern is d) Electricity cost for the manufacturing plant. This is because electricity cost has a fixed component, such as the base fee for being connected to the power grid, and a variable component that depends on the level of electricity usage, which in turn is related to the amount of production or operation activities in the plant. While a Salesforce commission is typically variable, based on the volume of sales, Raw material cost is also variable but depends directly on the quantity of production. On the other hand, Depreciation of production equipment tends to be a fixed cost, not changing with the amount of goods produced.