When should you buy something that is on sale?

Stosch company's balance sheet reported assets of $112,000, liabilities of $29,000 and common stock of $26,000 as of december 31, year 1. if retained earnings on the balance sheet as of december 31, year 2, amount to $74,000 and stosch paid a $28,000 dividend during year 2, then the amount of net income for year 2 was which of the following? a)$23,000 b) $35,000 c) $12,000 d)$42,000