Which of the Following Represents the Correct Ordering of Returns

Which of the following represents the correct ordering of returns over the period 1926 to 2011 (from lowest to highest return) ?

A) Treasury bills,long-term corporate bonds,common stocks,small firm common stocks
B) small firm common stocks,common stocks,long-term corporate bonds,Treasury bills
C) Treasury bills,common stocks,long-term corporate bonds,small firm common stocks
D) long-term corporate bonds,Treasury bills,common stocks,small firm common stocks