Answer:
B. variable cost and period cost
Explanation:
The cost of shipping describes the variable cost and the period cost.
The variable cost is that cost which changes when the level of production changes. This requires indirect resources, indirect labor, and supplies from factories.
The period cost is that cost which is not capitalized plus it would be incurred with the passage of time. It involves the selling and administrative department of the income statement.
Hence, the correct option is B.