I need help please
1) The number of fish in a pond can be modeled by the function f(t)=1200(0.85)^t, where t is the number of years. Which of the following is true?
A. The fish population increases by 85% each year.
B. The fish population decreases by 85% each year.
C. The fish population decreases by 15% each year.
D. The fish population increases by 15% each year.