Family members share their genes, as well as their environment, lifestyles, and habits. Everyone can recognize traits such as curly hair, dimples, leanness, or athletic ability that run in their families. Risks for diseases such as asthma, diabetes, cancer, and heart disease also run in families
This disease is called Parkinsons!
Hope this helps!
It is true if that's what you're asking.
All of those ARE reasons why communicable diseases kill fewer people today except for B. Your answer is B.