Swifty Corporation has 3600 shares of 7%, $50 par value, cumulative preferred stock and 72000 shares of $1 par value common stock outstanding at December 31, 2017, and December 31, 2016. The board of directors declared and paid a $10500 dividend in 2016. In 2017, $52500 of dividends are declared and paid. What are the dividends received by the preferred stockholders in 2017?

a) $12600

b) $25200

c) $35700

d) $14700