Which of the Following Statements Is True

Which of the following statements is true?

A) Registered dietitian nutritionists aren't required to maintain their certification regularly.
B) The First Amendment of the U.S. Constitution often protects people who spread nutrition misinformation.
C) You can ask your personal physician for nutrition advice, because physicians have the same training as registered dietitian nutritionists.
D) In the United States, only registered dietitian nutritionists can provide nutrition information legally.