Answer:The answer is. D. And
Explanation:How i know this is true is because when it says and in the sentence it is predicting another word is coming right after so there and have a great day. :) ;)
<u>Answer:</u>
Eradicating smallpox was successful because of many reasons.
<u>Explanation:</u>
Smallpox was regularly found in an area or we can say it was prevalent in some places. So, mortality rates were high. It was caused by variola virus and affected mainly humans. So, it was essential that such vaccine is developed which can successfully immune people from this disease.
Smallpox vaccine then started spreading across "Europe and North America" and then gradually it spread all over the world and successfully eradicated smallpox by 1980. Other diseases that have been controlled by vaccines are “diphtheria, bacterial influenza, measles, mumps, rubella, and tetanus”.
Her mom is okay with it, which surprises the girl.
Two races were sometimes an other promblen becuse of their family traditions and beliefs so.
