Answer :

AIDS is an infectious disease and can be spread by unsafe sex or by contaminated fluids.
Influenza (or flu) is contagious through droplets from a sneeze or cough.
Polio can be caught through droplets from a sneeze or cough or by contact through an infected person's stool.
So, your answer is B. Diabetes.
AL2006
Diabetes is not caught ftom outside of you. Nobody can 'infect' you with it.

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