Parking Garages,$500,000 Printing Presses,privately Owned Warehouses,and Oil-Well Drilling Platforms Are

Parking garages,$500,000 printing presses,privately owned warehouses,and oil-well drilling platforms are depreciated over time rather than expensed in the year they are purchased.How are they classified?

A) as component parts
B) as installations
C) as accessory equipment
D) as processed materials