Answer: B. Slower population growth
Explanation:
Slower population growth is Not a reason why communicable diseases like pneumonia kill fewer people today than they did in the past, this is because in present times irrespective of the population growth, newer approaches have been introduced to improve quality of life and hence reduce the risk of communicable diseases.
Approaches like; continuing medical advances, improved living conditions, better preventive treatment. Etc.
Tell them that they need to work on hygiene. it is healthy for them, they can drink cranberry juice to make it smell better
The body requires more energy
Well I believe to tell everybody you can about the true god and be happy in doing it. Hope this helps ;)