Final answer:
Sub-Saharan Africa has the highest mortality rate from malaria due to the high prevalence of the malaria-carrying mosquito and limited access to healthcare.
Step-by-step explanation:
The population with the highest mortality rate from malaria is (a) Sub-Saharan Africa. This is due to the high prevalence of the malaria-carrying mosquito and limited access to healthcare. Malaria is an infectious disease caused by a parasite called Plasmodium, which is transmitted through the bite of an infected mosquito. Sub-Saharan Africa has a high number of malaria cases and deaths because of the abundance of mosquitoes in the region, as well as factors such as poverty, lack of infrastructure, and limited healthcare resources.
correct option (a) Sub-Saharan Africa - Due to high prevalence of the malaria-carrying mosquito and limited access to healthcare.