Which of the following did emma hart willard accomplish in 1826?

Emma Hart Willard  founded the first school for women's secondary and higher education in the United States -- the Troy Female Seminary in Troy, New York.

Emma Hart Willard (1787–1870) was born to a farming family in Connecticut. But her father, a farmer, encouraged his daughter to learn to read and write.  She went on to want to encourage education for other women.  The Troy Female Seminary, which she founded, actually was started in 1821 (not 1826) - I wonder if there's a typo in your question?  According to the National Park Service, Troy Female Seminary  is recognized as the country's first secondary school for females.  Emma Willard's goal was to provide young women with the same educational opportunites as men.

In 1895, The Troy Female Seminary was renamed The Emma Willard School in honor of the founder.  It operates today as a university-prep school / boarding school for young women in grades 9-12, with an enrollment in the 300s.

because mexico wanted to choose a centralized location

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this