Problem:
Ingrid Birdman can earn a nominal annual rate of return of 12%, compounded semi-annually. If Ingrid made 40 consecutive semi-annual deposits of $500 each, with the first deposit being made today, how much will she accumulate at the end of Year 20? Round off to the nearest $1.
A) $57,901
B) $82,024
C) $52,821
D) $64,132
Note: Describe all steps comprehensively.