For each separate case below, follow the three-step process for adjusting the unearned revenue liability account at December 31. Step 1: Determine what the current account balance equals. Step 2: Determine what the current account balance should equal. Step 3: Record the December 31 adjusting entry to get from step 1 to step 2. Assume no other adjusting entries are made during the year. a. Unearned Rent Revenue. The Krug Company collected $6,000 rent in advance on November 1, deb- iting Cash and crediting Unearned Rent Revenue. The tenant was paying 12 months' rent in advance and occupancy began November 1. b. Unearned Services Revenue. The company charges $75 per insect treatment. A customer paid $300 on October 1 in advance for four treatments, which was recorded with a debit to Cash and a credit to Unearned Services Revenue. At year-end, the company has applied three treatments for the customer. c. Unearned Rent Revenue. On September 1, a client paid the company $24,000 cash for six months of rent in advance (the client leased a building and took occupancy immediately). The company recorded the cash as Unearned Rent Revenue, QS 3-10 Unearned (deferred) revenues adjustments P2