The Computation for the Yield to Call (YTC) Is the Same

The computation for the yield to call (YTC) is the same as that for the yield to maturity (YTM) , except that we substitute the _____ of the bond for the maturity (par) value and _____ for the years to maturity. 

A) market price; the number of years until the bond can be first called
B) face value; five years
C) call price; the number of years until the bond can be first called
D) principal value; 10 years
E) issue price; the number of years until the bond can be first called