Depreciation expense on all of an Enterprise Fund's capital assets must be reported as expenses in the fund's operating statement. However, expenditures to maintain certain capital assets may be expensed in lieu of reporting depreciation. These capital assets include

a. infrastructure capital assets donated to the government.

b. infrastructure capital assets that meet the modified approach requirements established by GASB Statement No. 34.

c. only infrastructure capital assets constructed or acquired prior to July 1, 1980.

d. buildings.

e. equipment.