The Transactions Carried Out by Palmer Corporation During the Year

The transactions carried out by Palmer Corporation during the year caused an increase in total assets of $25,000 and a decrease in total liabilities of $10,000.
If no additional investment was made by the investors during the year and dividends of $7,000 were paid, what was the net income for the year?

A) $53,000
B) $42,000
C) $21,000
D) $30,000
E) None of the above