George Washington was dead before 1812 so C
Both Gregor Mendel and Alfred Wegener proposed ideas that were not accepted completely by the scientific community during their lifetimes. They had common ideas. They were presented by amateur scientists who were not accepted by the scientific community.
The answer would be letter A.
Because they were racists. They viewed them as slaves and property, and when they were freed, they viewed them as animals and segregated them. They wanted to find all possible ways to remove them from the society