Answer:
A.There are no limiting factors
Step-by-step explanation:
Exponential growth is the population growth in which the size or number of individuals is increased by a constant multiple rate in each generation. When there are no limiting factors such as when resources availability is unlimited in a habitat, the population grows by increasingly higher amounts in an exponential fashion. A good example of exponential growth can be observed when bacteria is grown/reproduced by binary fission in the laboratory.