Assume the same facts as in question 20 except that Robin would like to have the same purchasing power in retirement savings at age 95, as she does at age 60, when she retires. How much must Robin save at the end of each year, if she wants to make her last savings payment at age 60 to meet her retirement goal, assuming she wants to maintain the original purchasing power of her capital balance?

a. $4,758.88.

b. $10,899.37.

c. $11,464.44.

d. $11,565.52.