Write the Word or Phrase That Best Completes Each Statement $t$

Write the word or phrase that best completes each statement or answers the question.
-A lake is stocked with 559 fish of a new variety. The size of the lake, the availability of food, and the number of other fish restrict growth in the lake to a limiting value of 3493 . The population of fish in the lake after time $t$ , in months, is given by the function $P ( t ) = \frac { 3493 } { 1 + 4.27 e ^ { - 0.36 t } }$ . Find the population after 20 months.

A) 3497 fish
B) 3492 fish
C) 3482 fish
D) 3472 fish