Alpha Corp. had $15,000 of dividends in arrears, for cumulative, non-participating preferred stock as of January 1, 2018.This value of dividends in arrears was for the fiscal years of 2016 & 2017. During the fiscal year of 2018, common shareholders received a cash dividend distribution.No additional shares were issued in the fiscal year 2017 & 2018. Use this information to determine the dollar amount of dividends that was paid to preferred shareholders in 2018