23. On November 1, 2020, J&J Inc. received $12,000 from a customer for services to be performed evenly over the period November 1, 2020 January 31, 2021. What adjusting entry should J&J record on December 31, 2020? Assume that no other adjusting entries have been recorded yet this year.

a. dr. Deferred service revenue: 8,000

cr. Service revenue: 8000

b. dr. Service revenue: 12,000

cr. Cash: 12,000

c. dr. Cash: 12,000

cr. Service revenue: 12,000

d. dr. Cash: 8,000

cr. Deferred service revenue: 8.000