An investment is advertised as returning 4.5% every 6 months (semiannually), compounded semiannually. If $30,000 is invested, the growth can be modeled by the equation A(t) = 30,000(1.045)^2t. What is the equivalent annual growth rate for this investment (rounded to the nearest tenth of a percent) and what is it worth (rounded to the nearest thousand dollar) after 30 years?
A.) 9.0% and $398,000
B.) 9.3% and $432,000
C.) 9.2% and $421,000
D.) 27.0% and $598,000