The population of bunnies in March is 12. A researcher notices that the population is tripling each month. The population can be represented by the equation P = 12(3)^x where x is the number of months since March. What will the population of bunnies be after 5 months?

a. 420
b. 180
c. 243
d. 2916

To find the population of bunnies after 5 months, we substitute x = 5 into the equation P = 12(3)^x:

P = 12(3)^5
P = 12 * 243
P = 2916

The population of bunnies after 5 months will be 2916.

Therefore, the correct answer is d. 2916.