If a bond investor's yield for a particular period does not change, then during that period, the bond's return:
A. Increases
B. Equals the yield
C. is zero
D. in indeterminate
2. Calculate the variance of returns for Alpha stock with the following historical rates of return:
2013 20%
2014 25%
2015 30%
A. 50.00
B 16.67
C. 33.33
D. 100.00