What are the steps to solving this?

Question 9 (1 point) Saved Determine Net Income, if a corporation had total assets of $600,000 and total equity of $225,000 at the beginning of the year, and assets increased by $150,000 and liabilities increased by $60,000, and no other transactions occurred except a dividend payment of $45,000 and revenues and expenses. a) $45,000 b) $105,000 c) $135,000 d) $90,000