The elephant population in northwestern Namibia and Etosha National Park can be predicted by the expression, 3652(1.045)^b where b is the number of years since 1995.

What does the value 3,652 represent?
a. the year when the elephant population is predicted to stop increasing
b. the percentage the elephant population is predicted to increase each year
c. the increase in the number of elephants in the religion each year
d. the number of elephants in the region in 1995

d. the number of elephants in the region in 1995