Costco Wholesale Corporation collects annual non-refundable membership fees from customers. When should Costco recognize revenue for these membership fees?

Select one:

A. Evenly over the membership year

B. At the end of the membership year when Costco has discharged its obligation to the customer

C. Pro rata over the customer's actual purchasing pattern

D. Evenly over the current fiscal year

E. Immediately when cash is received because the fees are nonrefundable