Respuesta :
The study of cells is called cell biology.
The correct option is B.
The quality of life depends on the various factors and these factors are as follows:-
- Less competition
- Easily available.
- Equal birth and death rate.
According to the question, the rise in the population is the only reason for bad life quality.
A state which has equal birth and death rate is the ideal state to live.
Hence, the correct answer is B that is the birth rate and the infant mortality rate.
For more information, refer to the link:-
https://brainly.com/question/12985618