Future Value $s ( t ) = 900 e ^ { 005 t }$

Multiple Choice

Future value. The future value that accrues when $900 is invested at 5%, compounded continuously, is $s ( t ) = 900 e ^ { 005 t }$ , where t is the number of years. At what rate is the money in this account growing when $t = 9 ?$

A) $14.11 per year
B) $49.24 per year
C) $1411.48 per year
D) $941.43 per year
E) $70.57 per year