Black Cable Company, an accrual basis taxpayer, allows its customers to pay by the year in advance ($600 per year) or two years in advance ($960). In September 2019, the company collected the following amounts applicable to future services: October 2019 - September 2021 services (200 two-year contracts) $192,000 October 2019 - September 2020 services (200 one-year contracts) 120,000 Total $312,000As a result of this, Black Cable should report gross income for 2020:a. $54,000 b. $78,000 c. $258,000 d. $312.000