Find the Simple Interest $=\$ 900$ Interest Rate $=3 \frac{1}{4} \%$ Time in Months

Multiple Choice

Find the simple interest. Round your answer to the nearest cent.
-Principal $=\$ 900$
Interest Rate $=3 \frac{1}{4} \%$
Time in months $=21$

A) $\$ 51.19$
B) $\$ 614.25$
C) $\$ 23.63$
D) $\$ 511.88$