51. Which of the following is correct?
a. Selling costs are product costs.
b. Manufacturing overhead costs are product costs.
c. Interest costs for routine inventories are product costs.
d. All of these.
52. All of the following costs should be charged against revenue in the period in which costs are incurred except for
a. manufacturing overhead costs for a product manufactured and sold in the same accounting period.
b. costs which will not benefit any future period.
c. costs from idle manufacturing capacity resulting from an unexpected plant shutdown.