I would say A. Because c and d r very dangerous if u think about it. And b is right in some situations. But if u do a then people can see whts going on if something happened because of the light. and it is safe. If wrong let me know. :D
Answer:
A disease that has been wiped out of existence has undergone <u>eradication</u><u>.</u> A good example can be the disease smallpox that was eradicated almost a century ago.
Medicare if they are over 65 normally, the other is their 2ndary.
