Which of the Following Is the Correct Order of Corporate

Which of the following is the correct order of corporate issues based on risk and return? (Most risk-return to least risk-return)

A) Common stock,subordinated debentures,secured debt,treasury bills.
B) Preferred stock,common stock,subordinated debentures,secured debt.
C) Common stock,long-term government bonds,secured debt,subordinated debt.
D) Common stock,secured debt,subordinated debentures,preferred stock.