An Index Has a Market Value of $689,400 at the Beginning

An index has a market value of $689,400 at the beginning of the period and $722,009 at the end of the period.If you want the beginning index value to be 100,what is the ending index value?

A) 104.73
B) 105.42
C) 105.67
D) 105.89
E) 106.13