Whose discovery of radium changed the world’s view of the atom?
Answer: It was Marie Curie whose discovery of radium changed the world’s view of the atom. Therefore the correct answer is choice C).
According to Sigmund Freud, human behavior is?
Answer: According to Sigmund Freud, human behaviour is strongly determined by repressed experiences. Therefore the correct answer is choice D).
I hope it helps, Regards.