The Green Company, an accrual basis taxpayer, provides business-consulting services. Clients generally pay a retainer at the beginning of a 12-month period. This entitles the client to no more than 40 hours of services. Once the client has received 40 hours of services, Green charges $500 per hour. Green Company allocates the retainer to income based on the number of hours worked on the contract. At the end of the tax year, the company had $50,000 of unearned revenues from these contracts. The company also had $10,000 in unearned rent income received from excess office space leased to other companies. Based on the above, Green must include in gross income for the current year:a. $60,000.b. $50,000.c. $10,000.d. $0.e. None of these.