D is your answer. it gives a more specific answer than the other choices, plus it is true. Slavery has been around since Jesus time, so that's way longer than the 1500s
This was Horace Mann. He helped create and design the first educational system in the United States, he was the Massachusetts' Secretary of the Board of Education and he started the "Mann's Six Principles", which were his thoughts of how he would choose decisions. He did a lot for schooling and shaped it how it really is today.
Explanation:
Theodore Roosevelt mobilised the public behind his policies and utilises his cabinet.
The louisiana purchase formerly belonged to France
Hitlers Family Doctor was a Jew. The doctor failed to save his mothers like (who he was very very close to) leading to her death from Breast cancer.