For each of the following items, identify whether the item is a product cost or period cost

Question:

For each of the following items, identify whether the item is a product cost or period cost for a clothing retailer.
ItemProduct Period
a. Invoice cost of purchased inventor)
b. Non-refundable tariffs on imported inventory
c. Cost of shelves and racks at retail store
d. Cost of shipping from distributor to warehouse
e. Transportation from warehouse to retail store
f. Cost to courier products to Y IP customers
g. Rent for warehouse
h. Rent for retail store
i. Wages of staff at retail store
j. Salary of purchasing manager