Marigold Corp. had net income of $134375 and paid dividends of $38500 to common stockholders and $21500 to preferred stockholders in 2020. Marigold Corp's common stockholders' equity at the beginning and end of 2020 was $890000 and $1260000, respectively. Marigold Corp's return on common stockholders' equity was O 10.50% O 7.50% O 12.50% O 6.50%