Rock Top Construction expects to pay a $2.50 dividend next year to its common stock holders. In each following year, common stock dividends will grow at 3%. Rock Top pays its preferred shareholders a dividend of $3.25 every year. If common stock sells at $32.40 per share and preferred stock sells at $40.45 per share, what are the required returns on each type of stock? Common 4.72%; Preferred 8.03% Common 10.72%; Preferred 8.03% Common 7.72%; Preferred 8.74% Common 7.50%; Preferred 8.74%