$ millions Current Year Prior Year Two Years Prior Subscription $16,388 $14,573 $11,626 Product 532 555 507 Services and other 686 657 735 Total revenue 17,606 15,785 12,868 Trade receivables, net 2,065 1,878 1,398 Deferred revenue -- current 5,297 4,733 3,629 Deferred revenue -- long-term 117 145 130 Notes to the company's 10-K provide the following additional information relating to its deferred revenue. Deferred Revenue and Remaining Performance Obligations Deferred revenue primarily consists of billings or payments received in advance of revenue recognition from subscription services, including noncancellable and nonrefundable committed funds and refundable customer deposits. Deferred revenue is recognized as revenue when transfer of control to customers has occurred. Customers are typically invoiced for these agreements in regular installments and revenue is recognized ratably over the contractual subscription period. a. Adobe reports three types of revenue on the income statement. Deferred revenue is related to which type of revenue? d. Use the information about Trade receivables and Total deferred revenue to calculate the cash that Adobe received from its customers during the current fiscal year