Answer:
Jane Addams
Explanation:
Jane Addams (September 6, 1860 – May 28, 1936) was an American settlement activist, reformer, social worker, sociologist, public administrator and author. She was a notable figure in the history of social work and women's suffrage in the United States and an advocate for world peace.
Agriculture provides a good example of an almost universal spread of an innovation
Answer:
46 presidents in total of the world
Explanation:
I think it's b. I think so.