You made contributions to a traditional ira over the course of 15 working years. her contributions averaged $4000 annually. yon was in a 29% tax bracket during her working years. the average annual rate of return on the account was 5%. upon retirement, yon stopped working and making ira contributions. instead, she started living on withdrawals from the retirement account. at this point, yon dropped into the 15% tax bracket. factoring in taxes, what is the effective value of yon's traditional ira at retirement? assume annual compounding.
a= $74,230.25
b= $25,031.13
c= $73,367.11
d= $141,367.11