Which One of the Following Is Not a Proper Method

Multiple Choice

Which one of the following is not a proper method of recognizing assets as expenses in a particular accounting period?

A) Customers' account balances in accounts receivable are assigned to expense in the period in which each customer pays.
B) Prepaid insurance is assigned to expense as the insurance expires.
C) A building is depreciated and its cost is assigned to the current and future accounting periods in which the building is expected to be used.
D) Merchandise inventory is assigned to cost of goods sold in the period the goods are sold.