In his letter to President Eisenhower dated back to May 13, 1958, Jackie Robinson addressed the issue regarding black civil rights. He expressed his frustrations on Eisenhower's lack of support for upholding black civil rights at that time and he moved to fight for Federal support on these rights.
If it's what I think you're talking about, I just had it on a test and it should be (C) sole,
Hope this helps
<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”.
