TOEFL Listening: TPO-TOEFL听力TPO - 7L07Z171NA1325E4R$

What does the professor imply about the chemist Ida Tacke when he says this: A. She did not realize that the periodic table predicted the radioactivity of element 43 B. She did not understand why her team's findings were dismissed by the scientific community C. Her theory about uranium would have explained the presence of element 43 in her team's ore sample D. Her theory about uranium would have explained the errors that created element 43 in a cyclotron