A Woman Contributed $\$ 340$ Per Quarter for the First 12 Years of an Annuity

Multiple Choice

A woman contributed $\$ 340$ per quarter for the first 12 years of an annuity, but changed to quarterly payments of $\$ 1,550$ for the last 12 years. Assuming $9 \frac { 3 } { 4 } \%$ annual interest compounded quarterly, what is her accumulated value?

A) $\$ 234,972.16$
B) $\quad \$ 234,922.34$
C) $\quad \$ 168,808.83$
D) $\quad \$ 168,911.72$