Cook Co. incurred the following costs related to the office building used in operating its sports supply company: Select each of the costs as a capital expenditure or a revenue expenditure. (a) Replaced a broken window. (b) Replaced the roof that had been on the building for 23 years. (c) Serviced all the air conditioners before summer started. (d) Replaced the air conditioners with refrigerated air conditioners in the customer service areas. (e) Added a warehouse to the back of the building. (f) Repainted the interior walls. (g) Installed window shutters on all windows