Answer:
Dividend policies are financial decisions based on what a firm pays out to its shareholders in proportion from its earnings.
According to Modigliani's theory, in an utopian world without taxes o bankcrupcy cost, the dividend policy is irrelevant, and what a firm pays out in dividends is nugatory regarding the firm's stock price earnings.
Any paid out dividend from a common or priviledged stock is considered an "ordinary dividend", and ordinay dividends are taxed by the Federal Government depending on regular income tax rates. Thereby the most suitable statement would be d); "The federal government sometimes taxes dividends and capital gains..."