Luther Inc., has 2,000 shares of 6%, $50 par value, cumulative preferred stock and 100,000 shares of $1 par value common stock outstanding at December 31, 2011, and December 31, 2010. The board of directors declared and paid a $5,000 dividend in 2010. In 2011, $24,000 of dividends are declared and paid. What are the dividends received by the preferred stockholders in 2011?
a. $17,000
b. $12,000
c. $ 7,000
d. $ 6,000