P represents the actual population of the insects in the world, in millions.
Once the minimum population of insects reaches 2 million:
P>=2, then possible options: Third or fourth
The minimum number of the species, in milions, is constantly decreasing at a rate of 7.9% each year.
When the exponent of "e" is positive, the function is increasing.
When the exponent of "e" is negative, the function is decreasing.
Answer: Fourth option:
P>= 26 e^(-0.079t)
P>= 2