Botswana being at stage three on the demographic transition model (DTM) indicates that it has a declining birth rate and a low death rate. This stage is characterized by a decrease in birth rates due to factors like access to contraception, urbanization, and changes in social values regarding family size, while the death rate remains low due to improvements in healthcare and living conditions.
Therefore, the best analysis of Botswana's birth and death rates is:
Botswana has a declining birth rate and low death rate.