Answer:
Explanation:
I believe the answer would be... D.
A Polio-Free U.S. Thanks to Vaccine Efforts. ... Polio has been eliminated from the United States thanks to widespread polio vaccination in this country. This means that there is no year-round transmission of polio virus in the United States. Since 1979, no cases of polio have originated in the United States.
Ovary
The ovary is the reproductive structure that releases egg cells
Because u can help a person that can help with that disease or problem that that person has