Hillary Clinton, Donald Trump, Gary Johnson, Jill Stein, Ted Cruz, Bernie Sanders, Marco Rubio, Rand Paul, Ben Carson, John Kasich, Mike Huckabee, Carly Fiorina, Chris Christie, Martin O'Malley, Jeb Bush, Rick Santorum, Jim Gilmore, George Pataki, Lindsey Graham, Lincoln Chafee, Bobby Jindal.
Scientists like Einstein, Bethe, Fermi, Teller, and Bloch emigrated from "Germany" in order to escape persecution and pursue scientific research, since this took place during the rise of the Nazi Party, which was highly anti-Semitic.
It has to be answer choice B because Spain was selling and getting back the Louisiana Territory it would hurt them or did hurt them financially and land wise too or in other words how much land they owned. Because of this happening, it contributed to the Adams-Onis Treaty.
(I'm sorry if it's wrong, but I'm pretty sure it's right)