A Woman Contributed $\$ 660$ Per Quarter for the First 15 Years of an Annuity

Multiple Choice

A woman contributed $\$ 660$ per quarter for the first 15 years of an annuity, but changed to quarterly payments of $\$ 1,450$ for the last 15 years. Assuming $7 \frac { 3 } { 4 } \%$ annual interest compounded quarterly, what is her accumulated value?

A) $\quad \$ 394,817.98$
B) $\quad \$ 235,679.23$
C) $\quad \$ 394,877.03$
D) $\quad \$ 235,509.70$