Jacqueline works at an aquarium where she keeps a record of the number of fish. The population of fish increases at a rate of 8.3% per year. The following expression represents the number of fish in the aquarium after t years. 21(1.083)^t

The expression that reveals the approximate monthly growth rate of the population of fish can be modeled by the expression a^bt .

Rounding to the nearest thousandth, determine the values of a and b that reveal the approximate monthly growth rate of the population of fish.

A) a = 12 and b = 1.083

B) a = 1.006 and b = 12

C) a = 1.083 and b = 12

D) a = 12 and b = 1.006