Harbor City Corporation's end-of-year balance sheet consisted of the following amounts: Cash Property, plant, and equipment Capital stock Retained earnings $ 15,000 Accounts receivable 70,000Long-term debt 100,000 Accounts payable ? Inventory $50,000 40,000 20,000 35,000 What is Harbor City's retained earnings balance at the end of the current year? a. $110,000 b. $10,000 Qc. $160,000 d. $170,000