Project Paso Vineyards processes grapes into champagne, which it bottles, corks, and places on shelves in underground caverns to age for several years. During the aging process, the winemakers hand-turn the bottles a quarter rotation every few months; also, at fixed intervals, they release yeast gases to preclude unwanted fermentation. Assume that Project Paso contracts to sell a quantity of champagne to a customer for 30 million. Under the terms of the contract, Project Paso will store the champagne in its caverns and perform all necessary functions associated with the aging process (for example, turning the bottles and releasing yeast gases). The selling price includes the costs of producing the champagne and providing services during the aging process. The customer pays Project Paso 15 million at the beginning of the aging and storage process, and agrees to pay the remainder in five years upon delivery of the champagne. When should Project Paso Vineyards recognize revenue from selling the champagne?

a) Project Paso Vineyards should delay revenue recognition until it delivers the champagne to the customer.

b) Project Paso Vineyards should recognize revenue when it sells the champagne to the customer.

c) Project Paso Vineyards should recognize one fifth of the revenue per year after it sells the champagne to the customer.

d) Project Paso Vineyards should recognize one half of the revenue 2 1/2 years after it sells the champagne to the customer.

e) none of these