The carrying capacity is defined as :
The number of people, other living organisms, or crops that a region can support without environmental degradation.
Now we are given that:
The first year, he counted a population of 80. over the next eight years, the population's numbers were 94, 100, 103, 110, 125, 120, 125, 120. the population never exceeded 125.
Since the population never exceeded 125, so we can say that the carrying capacity of elephants is 125.
Answer: The carrying capacity of elephants is 125.