The number of trees in a forest is decreasing at a rate of 5% per year. The forest had 24,000 trees 15 years ago. Write an exponential decay function to model the situation. Then find the number of trees now.
A. y = 25,000 (0.85)t; 11,119 trees
B. y = 25,000 (0.95)t; 11,119 trees
C. y = 24,000 (0.95)t; 11,449 trees
D. y = 24,000 (0.95)t; 11,119 trees